Justin Hartley and Jensen Ackles reunite as the Shaw brothers for season 4 of CBS’s hit series Tracker, which moved production from Vancouver to Los Angeles.
Related: Justin Hartley’s Tracker Moving Production from Vancouver to LA
Tracker follows Colter Shaw (Justin Hartley), a lone-wolf survivalist who roams the country as a reward seeker, using his expert tracking skills to help private citizens and law enforcement solve all manner of mysteries while contending with his own family mystery.
A lot has happened in the Shaw family — brother Russell (Jensen Ackles), Colter (Justin Hartley), sister Dory (Melissa Roxburgh) and Mom (Wendy Crewson) — in three seasons.
When we met Colter in season one of Tracker, he believed that Russell had caused their father Ashton Shaw’s death 20 years before but in the second-to-last episode of that season, Russell convinced him someone else was responsible.
In season 2 episode 2, Russell came to Colter’s rescue on an X-Files-style case and the Shaw brothers found out a bit more about their father’s work as a government contractor and possible involvement in a conspiracy.
Then, at the end of season 2, Colter was stunned to learn his mother Mary (Wendy Crewson) may have been involved in his father’s death, after Colter found and confronted the man Otto (Alex Fernandez), who actually pushed his father off the cliff.
Colter and Russell reunited in the two-part season 3 premiere on another X-Files-style case, investigating a system called The Process — in which people were blackmailed into doing terrible things, modelled by grad students after their professor’s experiments.
The Process took the brothers into a very dark place, similar to the world that their Dad inhabited when something caused him to step away and take his family off the grid to somewhere near the Sierra National Forest.
In the season 3 finale, the brothers fiound out what that something was when they investigated their father’s mysterious work at the Chrono Stasis Institute in Alaska.
In Part One, Russell and Colter tracked down a researcher who worked with their father in Alaska and learned of the experiments done on kids at the Institute.
In Part 2, the brothers rescued two test subjects Danny and Lola. from a present day testing facility and arranged their disappearance.
Their father had tried to shut down the Chronis Stasis experimentation on gifted children at the Institute and that’s what made him go off grid.. Does this wrap up the family mystery?
Nope. Russell was shown a classified file that detaiked experiments their father did on Colter as a child. To keep that hidden from his brother, Russell agreed to do “one last job” for this shadowy organization.
Tracker- Season 4:
Los Angeles filming dates: July 06 2026 – April 08 2027.
Showrunner: Elwood Reid.
Cast: Justin Hartley, Fiona Rene, Chris Lee.
Family: Justin Hartley, Jensen Ackles, Melissa Roxburgh, Wendy Crewson.
Producers: Justin Hartley, Ken Olin, Elwood Reid, 20th Television.
Tracker moved production from Vancouver to Los Angeles for season 4.