When you watch Supernatural Season 13 Episode 23 online you'll see just how far one brother will go to save the other. The guys are surprised to learn Michael and Lucifer have made their way into their world when they are confronted by Michael at a gas station. Before they can ask any questions they are able to escape. Meanwhile, Jack is confronted by Lucifer while he is alone in the woods. Lucifer puts it in his head they need to escape the world because they need to start a new life. Lucifer is able to manipulate Jack to agree. Before Jack agrees to go with Lucifer he asks him to bring back a woman named Maggie who was found dead outside the bunker. Lucifer reluctantly agrees and goes to the bunker with Jack. Sam, Dean, and Castiel arrive just has Lucifer and Jack disappear. The guys aren't able to do much because Michael shows up soon enough. While Michael is slowly killing Dean, Sam prays to Jack to come help them. Jack hears the prayer and shows up just in time. Jack gets the upper hand on Michael, but before he kills him Michael tells Lucifer they had a deal which throws Jack off. Jack questions Lucifer about this deal, but he doesn't want to tell him anything. Jack uses his powers to get Lucifer to talk, and surprisingly it is revealed Jack is now even more powerful then Lucifer as he is able to get the entire truth out of him. Lucifer gets angry, and when Jack isn't paying attention, he is able to slash his throat to get his grace. Want to see what happens next? Go watch Supernatural online now via TV Fanatic to see the exciting conclusion.