On this episode of Supernatural…
Sam and Dean reunite after Garth is put in the hospital.
He reveals that he was bitten by a werewolf, and has joined a werewolf pack that don’t hurt others.
After Garth and his new wife are kidnapped, the brothers learn there is another group of werewolves, led by a werewolf born not bitten, bent on human extinction.
Garth is saved, and Dean agrees to let him keep living with the werewolves.
Sam agrees to work with Dean again, but the two as brothers isn’t mended yet.