In [[15.01 Back and to the Future]], the demon [[Belphegor]] tells Dean that when [[Chuck]] began the end of the world, all of the doors in Hell sprung open, including Lucifer's Cage. Dean becomes worried about Michael, and Belphegor states that last he heard, Michael is still just sitting in the Cage. He muses that the archangel will want revenge if he does get out.
====[[Michael (Apocalypse World)|Apocalypse World Michael]]====
After being locked in Dean's mind<ref name="fourteen10">[[14.10 Nihilism]]</ref>, Michael is left trapped for a couple of months until Dean is knocked unconscious by the [[gorgon]] [[Noah Ophis]]. Escaping, Michael possesses [[Rowena]] and brutally kills several hunters. However, before he can kill the Winchesters, Castiel, and Jack, Jack taps into the power of his soul and exorcises Michael from Rowena. Jack is able to destroy Michael and absorb his [[grace]], restoring Jack's own powers as a [[Nephilim]].<ref name="fourteen14">[[14.14 Ouroboros]]</ref> However, Jack burns away his entire soul in the process and becomes completely [[soulless]].<ref name="fourteen17" />