Following Episode 18's revelations about their father's links to the secretive Chronostasis Institute, Jensen Ackles will reprise Russell Shaw in the final two episodes of CBS' Tracker Season 3. He appears in Episode 21, 'Chrono Stasis,' on May 17, and the season finale, 'The Best Ones,' on May 24.
CBS' Tracker Season 3 closes out with Jensen Ackles returning as Colter Shaw's brother Russell in Episodes 21 (airing Sunday, May 17) and 22 (finale on Sunday, May 24). New photos confirm his involvement, building on Episode 18's setup involving the DARPA-funded Chronostasis Institute and its mysterious accident. The episodes focus on Colter and Russell probing their father's shadowy research ties, as first reported by TVLine on April 30.