Justin Hartley's cowboy moment in the newest Tracker trailer elicited a lot of strong reactions - including some jealousy from costar Jensen Ackles. CBS released the first look at season 3 on Wednesday, September 24, which showed Hartley's character, Colter, riding a horse. In the comments section of Hartley's social media post, Ackles, 47, questioned the scene-stealing moment. "A HORSE?!?!" Ackles wrote via Instagram. "Why didn't I get a horse???" Elsewhere in the sneak peek, Ackles was seen reprising his role as Colter's older brother, Russell.