Supernatural Season 8 Episode 17 (03/20/13)
On this episode of Supernatural…
Sam and Dean investigate a series of demon slayings that sound like an angel has been the culprit.
They discover Castiel has been on the hunt for Lucifer's crypts, which might hold an angel tablet. He is brainwashed under Naomi, who doesn't want the brothers to know anything.
They also learn that Crowley has been torturing Meg, who knows the location of the crypts. She decides to help the Winchester's instead.
Meg flirts with Castiel.
Castiel almost kills Dean for the angel tablet, but after touching it, breaks the brainwashing. He disappears.
Crowley arrives, but Meg holds him back before Crowley kills her.
Crowley and Naomi have a mini-standoff.
Sam agrees to stop lying. Dean agrees to help Sam during the trials.
Castiel travels alone on a bus with the angel tablet.