Supernatural (TV series)/Recap/S07/E04 Defending Your Life

Season 7, Episode 04:

Defending Your Life
While investigating a series of murders, Dean and Sam learn that the Egyptain god Osiris is responsible for the killings. A god with nothing but revenge on his mind, Osiris is putting random people on trial for any mistakes they've made in the past and then promptly killing them if they're found guilty. Upon sensing Dean's guilt, Osiris puts him on trial with Sam becoming Dean's lawyer. But both Sam and Dean are stunned when Osiris calls a witness, someone they thought they'd never see again: Jo.

Tropes

 * Egyptian Mythology
 * Kangaroo Court
 * The Judge
 * Sadly Mythtaken: Osiris isn't the judge of the Underworld, Anubis and Ma'at (and sometimes Thoth) are, and none of those death-gods are particularly evil anyways.
 * Sealed Evil in A Can: Osiris can't actually be killed; the only option the boys have is to seal him away for a couple thousand years.
 * Surprise Witness