Jensen Ackles’ Hit Mystery-Action Series Is Finally Returning to CBS & Streaming

• Tracker Season 4, starring Justin Hartley as Colter Shaw, is set to premiere on CBS on October 4, 2026, continuing the story from Season 3.
• The new season will open with Shaw searching for a missing father in the Port of Los Angeles, getting involved in a dangerous criminal operation.
• Jensen Ackles will return as a recurring guest star, playing Colter’s brother Russell, as the series follows Colter’s work across different cases and deals with revelations about his family history.

CBS’ hit series Tracker is preparing to return with its fourth season. The mystery-action drama will once again follow Justin Hartley as Colter Shaw as he takes on complex cases and searches for people in need. The upcoming season will also continue the story following the developments of Season 3.

Tracker Season 4 is set to hit CBS next month

Tracker Season 4 is set to premiere on CBS on October 4, 2026, bringing Justin Hartley’s Colter Shaw back for another round of cases. The season will open at 9:30 p.m. ET on CBS, with the episode becoming available to stream on Paramount+ at midnight on October 5 in the U.S.

The new season will open with another case for Shaw, who continues to travel across the country helping people in difficult situations. In the Season 4 premiere, he will search for a teenage boy’s missing father. The investigation will take him to the Port of Los Angeles, where he becomes involved with a dangerous criminal operation.

Justin Hartley will once again lead the series as Shaw. He will be joined by Fiona Rene, Chris Lee and Cassady McClincy Zhang, who are returning as Reenie, Randy and Mel, respectively. The three characters remain part of Colter’s trusted team as he continues his work across different cases. Jensen Ackles also appears in the series as a recurring guest star, playing Colter’s brother, Russell.

Season 4 follows the conclusion of the third season, which ended on May 24, 2026, after 22 episodes. The previous season also brought new revelations concerning Colter’s family history. Those developments are expected to remain relevant as the character deals with the consequences of what he learned while continuing to focus on his work.

Tracker is based on Jeffery Deaver’s 2019 novel The Never Game. Ben H. Winters developed the book for television, with the series following Colter as he uses his survival skills and instincts to locate missing people and collect rewards.