Erica Hernandez and Sarah Jane Morris guest star in CBS’s Tracker season four, episode two, which finds Colter dodging falling boulders while searching for missing hikers. “Switchback” will air on Sunday, October 11, 2026 at 9pm ET/PT.
Justin Hartley leads the cast as Colter Shaw, Chris Lee returns as Randy, and Fiona Rene’s back as Reenie Greene. Hartley, Katsnelson, Ken Olin, Elwood Reid, Sharon Lee Watson, Travis Donnelly, and Ryan O’Nan serve as executive producers. Author Jeffrey Deaver is a producer.
“Switchback” Plot: When a mother and daughter vanish while hiking the Pacific Divide Trail, Colter races to find them after discovering they were being stalked. Travis Donnelly and Ryan O’Nan wrote the episode, and Jeff T. Thomas directs.
Tracker Description, Courtesy of CBS:
Tracker stars Justin Hartley as Colter Shaw, a skilled tracker and lone-wolf survivalist who crisscrosses the country searching for missing people and collecting rewards. Relying on his sharp instincts, unconventional expertise, and trusted team, Colter tackles dangerous cases, uncovers hidden truths, and brings answers to those with nowhere else to turn.