When Liv consumes the brain of a vice detective who doesn’t play by the rules, her newfound recklessness gets her into trouble. Meanwhile, Major is coming really close to discovering…

Liv consumes the brain of a murdered live-action role-playing knight in order to solve his murder; Peyton uncovers a truth about Liv; Major embarks on a mission.

In Camelot, the heroes feverishly work to free Merlin. Determined to help Emma, David embarks on a quest to retrieve a magical relic that Regina could use to communicate with…

Bellamy, Finn and Jasper head into Grounder territory to search for Octavia, as flashbacks show the siblings’ difficult childhood on the Ark. Meanwhile, Raven finds out about Clarke and Finn.

Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his diminishing grace.

In a black-and-white world reminiscent of classic horror flicks, the brothers tangle with a vampire, a werewolf and a mummy who are thinning the crowds at a quaint Oktoberfest.