In attempt to recall a plan to defeat the Observers, Walter takes an LSD trip down memory lane. Meanwhile, Peter and Olivia trace a mysterious signal to the woods, where…

Shawn and Gus team up with Despereaux to locate a mythical dagger rumored to be the key to unlocking a dead billionaire’s treasure.

Dean is furious after Sam disappears to follow a lead on a case with clues that are identical to a case Sam solved as a kid. The demon turns out…