1 month later
It had been a month since Sam had falled into a coma due to the disastrous accident. Dean would come to the hospital everyday, alongside Bobby and Cas and he would talk to his brother, hoping that he would hear him but all Dean heard was the whooshing sounds of the ventilator that kept Sam alive. They had tried everything to help Sam, even the supernatural but nothing helped. Sam just wouldn't budge from his slumber.
Somewhere far away a familiar being watched this unfold Infront of his eyes. He liked the younger Winchester and he just couldn't stand here and do nothing. Tonight, he decided that he was gonna help when Dean would go home but for that he needed to turn into his true self so he turned himself into what he actually was, the archangel Gabriel.
After Dean went home in the night, Gabriel came into the room where Sam's still form lay. He moved closer and started caressing Sam's hair saying "Oh kiddo, I'm gonna make this all better now" he said and started healing Sam and after a few minutes, Sam's eyes opened to slits "l'ki?" he asked, slurred. "Hey, sambo, that accident really did a number on you. Don't worry now, I fixed everything now. I have to go now or else Dean will kill me if he sees me anywhere near you. Sleep now, Sammich" Gabriel said and Sam nodded and went to sleep.
Next day, when Dean and bobby came, they couldn't believe their eyes. His brother had opened his eyes and was looking towards Dean, smiling. "Hey, dean" Sam said and Dean rushed and hugged his brother so tight, he didn't wanna let go. Sam hugged back and said "I'm here now, I'm not going anywhere" Sam said and everything was fine in the Winchester World again.