Changes

Later that night, Jack and Lucifer are watching the stars as they ready to depart the Earth, when Jack begins to hear a prayer from Sam, begging for help. He quickly teleports to the Bunker where he finds Michael attempting to strangle Dean to death, and uses his powers to cause great damage to Michael's vessel. When the pain causes Michael to reveal his partnership with Lucifer, Sam also reveals that it was Lucifer who killed Maggie. As Lucifer denies the allegations, Jack uses his powers to compel Lucifer to tell the truth, at which point he gleefully describes how he murdered Maggie in detail. Learning this, Jack rejects his father, calling him a monster, which greatly angers Lucifer. Realizing he has lost his son, Lucifer tells him he only needs his power, and slices Jack's neck and consumes most of his grace. As he begins to teleport away with Jack, Sam grabs on to him and is taken along to a church.

In the church, Lucifer offers an ultimatum: He will allow Jack or Sam to walk out of the church, and give them a week to stop him, if they fight to the death now. He tosses the archangel blade on the ground between them, and when Sam picks it up and tells Jack to kill him, Jack refuses, telling Sam he won't be able to stop Lucifer, but that Sam will. Telling Sam he loves him and all of them, Jack takes the archangel blade and begins to slowly push it into his chest. Before he can complete the task, Dean arrives, having given consent to Michael to possess him. He and Lucifer engage in battle in the church as Sam and Jack look on. When Lucifer gains the upper hand, Sam throws Dean the archangel blade, allowing him to stab Lucifer in the heart and finally kill him. Sam, Dean, and Jack celebrate their victory, but the celebration is cut short. Jack can only look on helplessly with Sam as Michael reneges on his deal with Dean and takes control of his body before teleporting away, leaving them in the church with Lucifer's corpse and wings burned onto the ground.