Cult
S04E19: 'Jump The Shark'
Aired Sunday, May 31 2009 at 21:00 BST on ITV2
Published Sunday, May 17 2009, 22:00 BST | By Lara Martin

Dean is instantly suspicious, thinking that it is a trap set by a demon or a shapeshifter, while Sam is more open to the possibility that John might have fathered a third child while on a hunting mission in the area.
Despite their differences, the brothers join forces to investigate the disappearance of Adam's mother, which they believe is linked to a spate of grave robberies previously investigated by John.
A second disappearance and a string of fresh cases soon leads them to suspect that the demon responsible for the gruesome crimes managed to escape their father and is now back for revenge.
Elsewhere, the boys' clash over whether John was right to keep Adam a secret from them, before an unexpected twist forces them to reflect on their own relationships with their father.
More: Cult, Supernatural


