Spoilers ahead for Episode 15 of Tracker Season 2, called "The Grey Goose" and available streaming with a Paramount+ subscription . Tracker brought back some familiar faces in the latest episode of Season 2 on CBS in the 2025 TV schedule , with Dead to Me 's Diana Maria Riva reprising her role from Season 1 and Sofia Pernas, Justin Hartley 's real-life wife, returning as rewardist Billie Matalon . The sparks between Billie and Colter caught fire at the end of "The Grey Goose," but I'm still thinking about a familiar face who wasn't in the episode: Bobby, played by Eric Graise.
Billie And Colter Hooked Up While the early exclusive clip gave away what reunited Colter with Detective Brock , fans had to wait until "The Grey Goose" aired on March 30 for the full context of Billie's return. Colter needed her help in infiltrating a women's prison to gain access to necessary information while he and Brock investigated from the outside. The plan sounded all well and good, and Billie knew what she was doing undercover in the prison, but her mission went sideways and she was in very real danger.
At the end of the episode, Colter dropped by her hotel room with a bottle of wine and an apology, and she accepted the former a lot more easily than the latter. With sparks flying, they shared a kiss, got a little spicier, and..
. "The Grey Goose" cut to black before Colter and Billie could become too heated for CBS in the 8 p.m.
ET time slot . It was Colter's first real love connection since Gin.






































