Justin Hartley Tracker season 4 is officially set to return on CBS this fall, and production is already well underway. The hit procedural drama, which has become one of the most-watched scripted shows on network television, is making a major shift this year, and fans have plenty to look forward to.
Tracker Season 4 Premiere Date Confirmed
CBS confirmed that Tracker season 4 premieres on Sunday, October 4, 2026, at 9:30 p.m. ET. After the premiere, new episodes will air weekly in the show’s regular time slot of 9 p.m. Eastern. Viewers should keep an eye out for possible scheduling shifts, since NFL coverage sometimes pushes CBS’s Sunday lineup back by a few minutes.
Episodes continue to stream on Paramount+ the day after they air on CBS, giving fans multiple ways to catch up on Colter Shaw’s latest cases. The season is expected to run through spring 2027, following the same extended broadcast format used in previous years.
Justin Hartley Returns as Colter Shaw
Justin Hartley continues to lead Tracker as Colter Shaw, the lone-wolf survivalist and self-described “reward seeker” who travels the country solving cases for private citizens and law enforcement. Hartley also serves as an executive producer on the series through his production company, ChangeUp Productions.
Hartley shared on Instagram in early July that filming had officially begun. He also revealed that Ken Olin, a longtime collaborator from his years on This Is Us, is directing the season’s first episode. That connection has excited longtime fans who remember Olin’s work behind the camera on Hartley’s earlier hit series.
The core cast returns alongside Hartley. Fiona Rene comes back as Reenie Greene, Colter’s tech-savvy partner, while Chris Lee reprises his role as Randy. Abby McEnany and Eric Graise also return in supporting roles that have become fan favorites over the past three seasons.
A Historic Move From Vancouver to Los Angeles
The biggest change heading into Justin Hartley Tracker season 4 involves the show’s production location. After three seasons filmed in Vancouver, Tracker is relocating to Los Angeles, marking the first time the series will be regularly filmed inside the United States.
The move became possible after Tracker received a $48 million tax credit from the California Film Commission, the largest incentive ever awarded to relocate a television series to the state. That total surpasses the $42.8 million credit Amazon’s Fallout received for its own move to California, giving Tracker a notable place in recent television production history.
Showrunner Elwood Reid explained that location has always shaped the storytelling on Tracker, and the production team expressed gratitude toward the Vancouver crews who helped build the show’s first three seasons. Filming officially began in Los Angeles in early July and is scheduled to continue through spring 2027.
Hartley addressed the change directly in comments to The Wrap, saying he does not expect the shift to alter the tone or character of the series. He described Tracker as a road show built around Colter traveling from town to town, meeting new people along the way, which he believes will make the new setting feel like a natural extension of the story rather than a disruption.
What to Expect From the New Season
Tracker follows Colter Shaw as he investigates missing persons cases across the country while slowly uncovering the truth behind his father’s mysterious death. Season 4 is expected to continue that dual structure, blending case-of-the-week mysteries with the ongoing family storyline that has kept viewers hooked since the show premiered in February 2024.
Fans can expect several storylines to carry over into the new episodes:
- Continued exploration of Colter’s complicated family history
- Further clues surrounding his father’s death
- Growth in his working relationship with Reenie Greene
- New missing persons cases in unfamiliar locations
- Guest appearances tied to Tracker’s rotating case format
Access to Southern California’s varied landscapes gives the writers room to send Colter into new kinds of settings, something that could subtly reshape the visual identity of the show even as the core format stays the same.
Jensen Ackles and the Russell Shaw Question
One recurring topic among fans involves Jensen Ackles, who has appeared in each of the first three seasons as Colter’s brother, Russell Shaw. Ackles recently addressed the possibility of returning for Justin Hartley Tracker season 4, saying Tracker is a show he tends to dip in and out of and that he is simply waiting for a call. Given his consistent presence in earlier seasons, many fans believe another appearance is likely, though nothing has been confirmed by CBS.
Ratings Success Driving the Show’s Momentum
Tracker has remained one of the most-watched scripted series on network television since its debut, with multiplatform ratings averaging around 17 million viewers per episode. That performance places it alongside CBS’s own Yellowstone spinoff, Marshals, and ABC’s High Potential as some of the strongest performers in the current broadcast landscape.
That sustained popularity is part of why CBS invested heavily in keeping the show running smoothly through its production shift. A series pulling in an audience of that size represents a significant piece of the network’s primetime lineup, and executives appear confident the Los Angeles move will not disrupt that success.
Trailer and Promotional Rollout
As of mid-August, CBS has not yet released a full trailer for Tracker season 4. Because production began only in early July, the network’s marketing rollout is expected to ramp up closer to the October 4 premiere, following the same pattern used in previous seasons. Fans watching Hartley’s social media accounts have gotten the earliest glimpses of the new season through behind-the-scenes posts rather than official network releases.
Quick Reference: Tracker Season 4 Key Details
| Detail | Information |
|---|---|
| Premiere date | Sunday, October 4, 2026 |
| Time slot | 9:30 p.m. ET (moving to 9 p.m. weekly) |
| Network | CBS |
| Streaming | Paramount+ |
| Filming location | Los Angeles (new for season 4) |
| Lead star | Justin Hartley as Colter Shaw |
Justin Hartley Tracker season 4 arrives at a pivotal moment for the series, carrying the momentum of three successful seasons into a brand-new production home. Between the Los Angeles relocation, the record tax credit, and the continuing mystery surrounding Colter’s family, the upcoming season has plenty riding on it. Hartley’s confidence in the show’s direction, paired with a cast that knows these characters inside and out, suggests Tracker is positioned to keep its audience just as engaged as ever.
What are you most excited to see when Tracker returns this October? Share your thoughts and predictions below.