Supernatural: Season 5 Episode 13: The Song Remains the Same
Starring: Jared Padalecki, Jensen Ackles, Misha Collins, Jim Beaver, Samantha Ferris, Alona Tal, Steven Williams, Shawn Roberts
Length: 60 minutes
Supernatural: S05E13 Description: The renegade angel Anna escapes from her prison in heaven. She travels back in time to kill Sam and Dean’s parents so that Sam is never born, and cannot be the vessel for Lucifer. Castiel sends Sam and Dean back to stop Anna.