The fifth season of Supernatural has left us with plenty of mysteries to chew on while the show takes a long holiday break: Where is God? What or who else can't be killed by the Colt? What will happen to Lucifer and the Apocalypse? These questions will be haunting fans until Supernatural returns for the rest of its fifth season. In the meantime, check out our spoilers after the jump, and you'll find what you need to prepare yourself for the show's return on January 21.

When we last saw Supernatural, the Winchester brothers attempted to kill Lucifer with the Colt only to discover that it can't kill him. Lucifer then sacrificed several demons to summon Death, while Castiel managed to free himself from his trap and took the brothers to Bobby's where they silently grieve over Ellen and Jo's death.