Production has officially commenced on the fourth season of CBS’s hit drama Tracker, starring Justin Hartley. According to production updates shared by Hartley on social media and confirmed by Yahoo Entertainment, the high-rated series has relocated its primary filming operations to Los Angeles, California. This geographical shift marks a major operational and creative transition for the network’s breakout procedural drama as it prepares for its upcoming fall premiere.
The transition to Season 4 comes on the heels of a monumental narrative shift. The Season 3 finale, titled “The Best Ones,” resolved the central mystery that had driven the series since its pilot episode: the murder of Colter Shaw’s father, Ashton Shaw. With that long-running family investigation officially closed, the series faces the creative challenge of redefining its protagonist’s motivations while maintaining the high-stakes tension that captivated millions of weekly viewers.
A New Production Base in Los Angeles
While the physical production of Tracker has relocated to Southern California, lead actor and executive producer Justin Hartley has reassured fans that the show’s distinctive atmosphere will remain unchanged. In an interview with The Wrap following the Season 3 finale, Hartley explained that the geographical move would not alter the fundamental tone or character-driven nature of the series.
“In terms of tone and character, I don’t think [the show’s relocation] impacts the show at all,” Hartley told The Wrap. “Our show is a road show. Our character goes from town to town across the United States of America and meets people from all different walks of life and helps them out.” Hartley noted that filming in and around Los Angeles actually expands the visual possibilities for the production, allowing the crew to simulate diverse landscapes—ranging from the beaches and deserts of the Southwest to metropolitan areas representing New York, Washington, D.C., and Texas.
The premiere episode of Season 4 also reunites Hartley with a trusted creative partner. Industry veteran Ken Olin, who served as an executive producer on Hartley’s previous hit drama This Is Us, is directing the season opener. Olin’s involvement signals continuity in the show’s high-caliber directing style and emotional depth, maintaining the creative synergy that has defined the series since its inception.
Moving Beyond the Ashton Shaw Mystery
For three seasons, Colter Shaw’s search for answers regarding his father’s death served as the emotional anchor of Tracker. The resolution of this arc in “The Best Ones” provided closure but also left Colter in uncharted territory. Key figures from his past—including characters portrayed by Brent Sexton, Lee Tergesen, Jensen Ackles, and John Keaton—have now stepped out of the immediate narrative spotlight, closing a significant chapter of the show’s mythology.
According to analysis by industry outlet El-Balad, the decision to wrap up the Ashton Shaw mystery was a necessary risk. Dragging the family conspiracy out past three seasons risked stalling the show’s momentum. However, the resolution was not entirely clean. Colter expressed lingering dissatisfaction with the ultimate truth behind his father’s death, particularly regarding Ashton’s connection to the mysterious Chrono Stasis Institute. This “split truth” allows the writers to keep a thread of psychological tension alive, even as the show transitions to more episodic, standalone cases.
The physical remnants of Colter’s past also continue to linger. The Season 3 finale featured John Keaton’s character hauling Ashton’s old truck up from Echo Ridge, serving as a material reminder of the family history Colter carries with him. Additionally, Colter’s newly revealed, “off-the-books” home base in the Pacific Northwest underscores his ongoing preference for isolation and private routines, even as his external world expands.
The Creative Stakes for Season 4
One of the most immediate narrative consequences of the Season 3 finale is the departure of Colter’s brother, Russell Shaw (played by Jensen Ackles). Russell’s exit leaves Colter without his primary ally—the one person capable of operating at his level and keeping federal interference at bay. This departure effectively isolates Colter once again, raising the stakes for his solo survival and forcing him to rely entirely on his own instincts as he navigates new territories.
As production continues in Los Angeles, the creative team behind Tracker must prove that the series can thrive without its original overarching mystery. By focusing on diverse landscapes, standalone rescue missions, and the psychological aftermath of Colter’s family discoveries, Season 4 aims to solidify the show’s status as a modern procedural powerhouse on CBS.