All Hell Breaks Loose, Pt. 1

S2 E21: Sam is abducted by the yellow-eyed demon and finds himself in a ghost town with children who have special abilities. They learn that the demon has brought them together to initiate his endgame: an all-out war against the human race. In an effort to encourage Sam to fight, the demon shows him what really happened to one of his parents. Dean enlists the help off fellow hunter Bobby (recurring guest star Jim Beaver) to find Sam before the battle begins.