Justin Hartley’s action drama procedural Tracker has been a big hit for CBS, clocking up strong viewership in the process, and providing one of the best novel-to-screen adaptations of recent times. Tracker follows Hartley’s Colter Shaw, a tracker and survivalist expert who travels the country assisting law enforcement and private citizens in exchange for reward money. Tracker season 3 was renewed in February 2025, and though no air date has been set yet, the show will run through the 2026-27 broadcast season.