Dean, Sam, Castiel and the newly resurrected Jack decide to take down Michael and his army of monsters once and for all, but Michael retakes control of Dean and unleashes his monsters on the city. The group subdue Michael, and Dean takes back control of his body and imprisons the archangel in his mind. Dean, with the help of Billie, builds the Ma’lak Box to imprison himself in, in order to protect the world from Michael. But Sam convinces Dean that they'll find another solution, and Dean makes a wish that brings John Winchester back from the past for a day. Dean is then injured on a hunt, and Michael is unleashed. Michael possesses Rowena temporarily, and kills most of the Apocalypse World hunters, but Jack burns off his soul to murder Michael and takes Michael's grace to restore his powers.