During an off-world assignment, Jack is struck down by energy from a blue crystal… which creates a duplicate of him that returns to Earth in Jack’s place.

Shawn has to face serious competition when a talented criminal profiler named Declan Rand comes to Santa Barbara to help solve the murders of donors on a liver-transplant list.

Sam and Dean call Castiel for help when they investigate a case about several dead police officers who seem to have been killed by the plagues of Egypt. Castiel confirms…

Frohike pieces together and recites to Mulder and Scully what could be the possible life story of the Cigarette Smoking Man; from a young captain in the U.S. Army recruited…

A.D. Skinner sends Mulder to investigate a body which washed into the New Jersey sewer from the ocean. Mulder believes that the basic blue-collar assignment is punishment, but by Skinner’s…

A computer with highly advanced Artificial Intelligence begins to kill in order to preserve its existence when it is deemed inefficient to continue controlling the workings of an office building.