After 3 months of research, the gang found a way to kill Lucifer. As Lucifer was an archangel, they would need an archangel blade to kill him. Throughout these months, dean kept a close eye on Sam. He was now back at his big brother mode. He took care of Sam so that he doesn't tries to kill himself, again.
Sam was happy that Dean was taking care of him and they also had discovered a plan to stop Lucifer. Castiel was also now very kind to him. Bobby was also mother henning all over Sam. They had the archangel blade and summoned Lucifer and killed the devil. The apocalypse was finally over. It was night time and Sam was sitting on the front porch of Bobby's house staring at the starry night sky.
"Whatcha doing out here, Sammy?" Dean's voice came and he sat beside his brother. "Just... enjoying nature" Sam said. "Yeah, the sky looks beautiful" Dean said and both of them smiled. "Dean.. I'm sorry" Sam said. "What for?" Dean asked. "For saying that you were the reason behind my suicide. You were not. The thing is ... I had depression since Jess died. That add up when dad died then you also died and now, Lucifer was free because of me. That pushed me to my limit" Sam said, sadly.
"Hey, Sam, c'mere" dean said and pulled the Younger Winchester in his arms. "You've got nothing to be sorry for. I'm sorry the way I acted. I'm sorry Sammy" Dean said and Sam nodded on his shoulder. They both pulled apart and Continue to look at the stars. From heaven, Castiel was watching the Winchester's and smiled at both of them.
