Executive Summary
Over more than three decades, Dick Wolf has built a distinctive approach to broadcast television drama. He develops related procedurals inside a shared fictional world, schedules them together, and produces them from consolidated physical facilities. The approach began with the Law & Order family in New York. It reached its most integrated form in NBC’s One Chicago block (Chicago Fire, Chicago P.D., and Chicago Med). He later carried it to CBS with the FBI franchise.
This paper examines four things:
- The strategic logic behind linking series.
- The contractual and talent structures that make crossovers routine.
- The logistics of combined production spaces.
- The tradeoffs and limits the model has shown.
The central finding is that the creative strategy (shared characters and crossovers) and the production strategy (shared studios, crews, and locations) reinforce each other. Each makes the other cheaper and easier. The model’s main limits are market saturation, scheduling complexity, and dependence on public subsidy.
1. Origins: From a Single Procedural to a Franchise Method
The Homicide experiment. Wolf’s first crossovers did not happen within his own franchise. They paired Law & Order with Homicide: Life on the Street, run by Tom Fontana. The two producers admired each other’s shows, and the idea came out of a conversation between them. It was not a simple corporate arrangement: in the 1990s, before the NBC–Universal merger, Law & Order was produced by Universal Television and Homicide by NBC’s in-house studio, which were separate companies. Wolf and Fontana first tried a brief cameo-style crossover in 1995 and followed it in 1996 with paired episodes in which Homicide‘s Detective John Munch entered the Law & Order world. Two more crossover events followed. Eventually Richard Belzer brought Munch to Law & Order: Special Victims Unit as a series regular. That was an early sign that a character could be moved between programs rather than retired.
The shared fictional infrastructure. The Law & Order series are tied together less by constant crossovers than by common fictional institutions. Hudson University and the New York Ledger tabloid recur across the shows, and supporting characters such as district attorneys, psychologists, and medical examiners appear in more than one series. Some major characters have left one show in the franchise and later joined another. This is an inexpensive form of linkage: a recurring medical examiner gives continuity across programs without requiring a three-hour event.
The Chicago turn. One Chicago was not originally sold as a three-show franchise. According to showrunner Matt Olmstead, the concept was not pitched that way, and Wolf followed momentum rather than a fixed plan. Chicago Fire, created by Derek Haas and Michael Brandt, was not an immediate ratings smash in 2012, but it drew enough of an audience for NBC to order Chicago P.D. two years later. Wolf has described the later shows as having been born from crossovers. Deadline credits him with building the first fully integrated universe of characters with this franchise. Wolf even said he wanted the casts of all the Chicago shows treated as one ensemble.
Export to CBS. By the time Wolf pitched FBI to CBS, he was pitching an entire franchise rather than a single series. He has also described a practical reason for the move: NBC had no more room on its schedule for his shows.
2. The Strategic Logic of Linked Series
2.1 Built-in audience and character migration. Wolf has summarized the case directly: franchise shows succeed because they start with a built-in audience and because their characters move freely between series. A new entry launched inside an existing universe begins with viewers who already trust the brand, the tone, and many of the faces.
2.2 The crossover as a ratings event. Wolf has called crossovers “ratings crack,” while acknowledging that they are very difficult to produce. The current numbers bear this out. In the March 4, 2026 crossover, which brought back former P.D. stars Jesse Lee Soffer and Tracy Spiridakos, all three shows reached their season highs in total viewers.
2.3 The franchise night. The most important structural innovation came in fall 2018. Although Wolf had been doing crossovers for more than twenty years, that was the first time all three shows from one franchise were scheduled on the same night. “One Chicago Wednesday” made three-hour crossover events possible. Scheduling them together turns three separate audiences into a single block that flows from 8 to 11. Viewers who stay tuned give each show a ready-made lead-in, and an unresolved plot at 9:59 becomes a reason not to change the channel. The model was soon copied: CBS saw the Wednesday success and did the same on Tuesdays. The Law & Order franchise later held its first three-cast crossover, a three-hour event that started on Organized Crime, moved to SVU, and ended with the trial on Law & Order.
2.4 Division of narrative labor. The linked structure works best when the shows are complementary rather than redundant. Wolf has said the Chicago shows support one another instead of making crossovers difficult, and that they are set within roughly a block and a half of each other. For the short-lived fourth series, he described the roles this way: Fire is the muscle, Med is the heart, and Justice was meant to be the brain. A fire call becomes a medical case and then a police investigation. Each institution hands the story to the next, and each show owns one stage of the same emergency.
2.5 Durable network value. The franchise remains the anchor of NBC’s Wednesday lineup, with consistent ratings and a loyal audience. NBC has renewed Fire for its 15th season, P.D. for its 14th, and Med for its 12th, all for 2026–2027. The shows lead the rest of NBC’s scripted lineup in ratings and average viewership.
3. Contractual and Talent Structures
Routine crossovers would be impossible if each guest appearance required a separate negotiation from scratch. Wolf has compared the process to a military operation and has said crossovers are included in actors’ overall deals. In a later interview he described the scale: 56 actors under contract across his shows, which he called a constant exploration of possibilities.
Two structural features make this manageable:
- Common ownership. Since the NBCUniversal merger, the studio behind the Wolf shows employs the talent across all of them. Moving a Fire regular onto P.D. is an internal transfer, not a loan between competing companies. This is a real change from the 1990s Homicide era, when the crossovers spanned two separate studios.
- Talent recycling. Cancellation inside the franchise does not end an actor’s employment. After Chicago Justice ended, its Peter Stone character became the sex-crimes ADA on SVU, and Antonio Dawson returned to Chicago P.D.. Stone’s boss, played by Carl Weathers, also guest-starred on SVU. The career path also runs between franchises: Nick Gehlfuss, who played on Chicago Med for eight seasons, now appears in the FBI spin-off CIA.
The exact pay and credit terms are private. Standard industry practice is that a visiting regular is credited as a guest star on the host show and paid an episodic fee, usually charged to the host show’s budget, under contract provisions set in advance.
4. The Logistics of Combined Spaces
The production side of the model is less visible than the crossovers but just as important. Linked stories are far easier to shoot when the linked shows share a campus, crew, and nearby locations.
4.1 New York: the Chelsea Piers model. Law & Order consolidated its stage work in Manhattan. Chelsea Piers is described as the city’s largest film and television production center, about 200,000 square feet, and it housed the sets for both Law & Order and SVU. For its first eleven years, SVU was shot elsewhere, at NBC’s Central Archives building in North Bergen, New Jersey. When New Jersey eliminated its 20 percent production tax incentive, SVU moved into the Chelsea Piers space that the original Law & Order had occupied. The facility has stayed central to the franchise: Organized Crime shoots its controlled interior scenes at Silver Screen Studios at Chelsea Piers, which can recreate precincts, interrogation rooms, and offices.
This history shows two logistical principles. First, a franchise can pass physical space from a canceled show to a surviving one, which preserves the investment in stages and keeps crews employed. Second, the location of a franchise’s facilities follows public incentives.
4.2 Chicago: the Cinespace campus. One Chicago takes consolidation further, with all three series based on a single studio lot. Cinespace Chicago Film Studios opened in 2011 on the 60-acre site of the former Ryerson Steel plant. Public money helped build it: the state contributed $5 million to get it started, and the city added a property tax break estimated at $3.5 million over twelve years. The site has grown alongside the franchise. In 2014 it had 18 stages, two of them used by Chicago Fire. By 2019 it had 31 sound stages on a 1.45-million-square-foot main campus.
Each show keeps permanent standing sets on that campus:
- Firehouse 51 (Fire). Interior scenes of Firehouse 51 are shot at Cinespace, and Soundstage 11 was identified as the show’s home.
- 21st District (P.D.). Production designer Gregory Van Horn has said the station consists of five separate sets: Front Desk, Intelligence, Roll-Up, Motor Pool, and Lockup. They are spread across two sound stages and a maintenance building, totaling more than 15,000 square feet.
- Gaffney Medical Center (Med). The show keeps three permanent medical sets on three stages. The Emergency Room set is the one viewers see most.
Because the firehouse, the precinct, and the hospital all stand on the same lot, an actor can finish a scene on one show’s stage and walk to another show’s stage for a crossover scene the same day. That greatly reduces the travel, rescheduling, and set rebuilding that crossovers would otherwise require.
4.3 The shared set: Molly’s. The clearest example of a combined space is Molly’s, the bar used by all three shows. It began as a real location, Lottie’s Pub in Bucktown. After the bar became a tourist attraction, the production built a recreation on a Cinespace stage so it would not disrupt the business. Some scenes still require a trip back to the real bar for authenticity. A single bar set used by three shows is the physical version of the shared universe: a neutral meeting ground where characters from different institutions can plausibly gather without a plot device.
4.4 Clustered exterior locations. The franchise’s real-world exteriors are also grouped closely together. Firehouse 51’s exterior is Chicago Fire Department Engine 18 on the West Side, a working firehouse that displays the number 51 over its entrance. The exterior of the 21st District is the University of Illinois Chicago Police headquarters, which sits just around the corner from that firehouse. A co-executive producer has said the crew films at Engine 18 at least three days a month.
Location choices also reflect the convenience of the home base. One producer explained that a story about a blue-collar or middle-class family might be shot in Pilsen or Bridgeport, both near Cinespace. On days with several locations, the crew checks permits and the distances between sites so it can plan travel time.
The fictional geography shapes the real one. Because Engine 18 is a one-story building, the writers dropped the sliding pole shown in the pilot so Firehouse 51 would match the real station.
4.5 The FBI parallel. The same principle appears in the CBS franchise. The stages for FBI and CIA are only three blocks apart in Greenpoint, Brooklyn, and one showrunner runs both series.
4.6 The public-incentive foundation. These facilities exist partly because of tax policy. The Illinois Film Office gives a 30 percent tax credit on qualifying spending on local crew, goods, and services. Producers can also receive an additional 15 percent credit on wages paid to residents of economically disadvantaged areas. City figures show the Chicago film industry’s estimated local economic impact rose from $150 million in 2011 to more than $474 million in 2018. Chicago Fire creator Derek Haas has publicly called the credit a major success for the state.
5. Tradeoffs and Limits
5.1 Saturation. A schedule can absorb only so many shows of one type. Chicago Justice, the fourth Chicago series, was canceled after a single 13-episode season in 2017. That season it averaged a 1.5 rating among adults 18–49, compared with 1.9 for P.D. and Med and 2.3 for Fire. NBC’s chairman at the time described the decision partly as a “real estate issue,” meaning limited room on the schedule. He said Justice was the most conventional of the Chicago shows and the closest to Law & Order, so it was the one to cut, and that the decision did not reflect its quality. The lesson is that a new entry must have a distinct institutional role. A Chicago prosecutors’ show competed with the network’s existing Law & Order brand instead of adding to the Chicago universe.
5.2 Burden on single-show viewers. Linked plots can frustrate viewers who follow only one series. Producers in the franchise-TV business have acknowledged that not every viewer watches both shows, that overseas markets do not always air the episodes together, and that future streaming has to be considered. Wolf’s stated goal is to make crossovers as impactful as possible while preserving each show’s individual identity. In practice, that means keeping most episodes self-contained and saving deep linkage for a few events each season.
5.3 Scheduling complexity. The more casts that are linked, the harder they are to coordinate. FBI/CIA showrunner Mike Weiss has said two-show events are hard to schedule. He also noted that crossovers take months of preparation and large numbers of cast and crew. Shared sets reduce the travel problem, but they do not eliminate competing demands on actors’ time across several production calendars.
5.4 Concentration risk. Consolidating productions in one facility makes them vulnerable to one disruption. When Hurricane Sandy hit New York in 2012, the SVU studio at Chelsea Piers suffered water damage and lost power. The production could not get back into its studio or offices for weeks.
5.5 Dependence on subsidy. The New Jersey episode shows that a franchise’s physical location can change when a state changes its incentives. Facilities and crews built around a tax credit carry political risk. Economists interviewed in the Chicago coverage questioned whether such subsidies are an efficient use of public money, and the state film office declined to provide a cost-benefit analysis.
5.6 Pressure on real locations. Using real places brings authenticity but also creates burdens. Lottie’s became a tourist site, which forced the production to build a replica. Engine 18 also draws heavy foot traffic, although the firehouse has not changed its daily operations because of it.
6. Conclusions
The Wolf model treats television drama as a portfolio built around three linked parts:
- A shared fictional world in which institutions (firehouse, precinct, hospital, prosecutor’s office) divide the work of each story.
- A shared schedule that turns separate audiences into one evening’s flow and makes crossover events possible.
- A shared physical base, such as Chelsea Piers in New York, Cinespace in Chicago, and Greenpoint for FBI, where standing sets, common crews, and nearby exteriors make it cheap to move characters between shows.
The creative and logistical sides depend on each other. Crossovers are practical because the sets are next to each other. Building the sets next to each other pays off because the stories are linked. Contracts that include crossover provisions and a talent pool that can move between shows connect the two.
The model’s weaknesses are equally clear. It cannot expand without limit, as Chicago Justice showed. It asks more of viewers who watch only one show. It concentrates physical risk in single facilities. And it depends on public incentives that can change with state politics. Within those limits, it has proved one of the most durable approaches in broadcast television: the One Chicago block is about to enter its fifteenth season, at a time when most network dramas do not reach a fifth.
Sources:
- TV Insider: Chicago Med, Fire & P.D. Renewed for 2026–2027
- Telltale TV: NBC Renews One Chicago
- Deadline (via PressReader): Crossover Television
- TVLine: FBI and CIA, Inside the Art of the Crossover
- TVLine: Law & Order Crossovers Outside the Franchise
- Variety (via PressReader): Franchises Building Bigger TV Universes
- ComicBook.com: Dick Wolf on Crossovers
- World Screen: Dick Wolf Interview
- Serienjunkies: Chicago Fire Was Never Planned as a Franchise
- Law & Order Franchise (The Wire Wiki)
- NBC (via AOL): Law & Order Three-Cast Crossover
- NBC Insider: Where Is Chicago Fire Filmed
- NBC Insider: Where Is Chicago P.D. Filmed
- NBC Insider: Where Is Chicago Med Filmed
- Soap Central: Chicago Fire Filming Locations
- Looper: Can You Visit the Chicago Fire Firehouse
- Wolf Entertainment: One Chicago Fan’s Guide
- Wikipedia: SVU Season 12
- Wikipedia: SVU Season 14
- On Location Tours: Law & Order Filming Locations
- Sportskeeda: Organized Crime Filming Locations
- NPR: Chicago Film Subsidies
- WBEZ: Cinespace Chicago
- Daily Herald: Illinois Tax Credit Expansion
- City of Chicago: Record Media Production
- Columbia Chronicle: Chicago as Filming Destination
- NPR Illinois: Illinois Film Industry
- Wikipedia: Chicago Justice
- Slashfilm: Why NBC Canceled Chicago Justice
- SheKnows: Why Chicago Justice Was Cancelled
- Looper: Chicago Justice Cancellation
- Shelby News: FBI/CIA Crossover
