Jensen Ackles guest-stars in #Tracker Season 1, Episode 12 as Russell Shaw, brother of Justin Harley's Colter. Airing Sunday, May 12 at 9/8c on CBS.

Now fully revealed as the ultimate threat to existence, the ANTI-MONITOR wages an unrelenting attack on the surviving Earths that struggle for survival in a pocket universe. One 由 one, these worlds and all their inhabitants are vaporized!