When Colter ( Justin Hartley) goes MIA while looking for a missing person, his team turns to his brother Russell ( Jensen Ackles) to help—and the episode adds to the Tracker mystery surrounding their father. (And yes, as with his first episode, there are plenty of moments that remind us of Ackles on Supernatural .)

Tracker brought back Jensen Ackles' character, Russell, in season 2 — and the Supernatural Easter eggs followed. During the newest episode, which aired on Sunday 20, Justin Hartley's character, Colter,

Ackles plays the brother of Colton Shaw (Justin Hartley) in the CBS hit Jensen Ackles' first Tracker episode of the season is sure to get Supernatural fans pretty revved up. When Ackles first appeared as Russell,