When the passengers on a commuter train all die instantly of massive power loss, the team realizes that a time traveler is responsible… and that it may be impossible to…

When they solve a case without following proper protocols, Shawn and Gus are ordered by the Chief to take a crash course at the police academy in order to learn…

Lexa and Clarke get into a heated discussion during battle preparations; Bellamy races against time.

Sam and Dean discover a group of witches “gone wild” and they attempt to stop them.

Sam investigates a case about missing babies whose parents are being murdered. At one of the crime scenes, he discovers a baby that was left behind and calls Dean for…