Sam and Dean are two brothers. Twenty years ago, in their childhood, their mother was killed by a supernatural force. Therefore, their father organized a "spiritual hunting group", and the father and son traced this evil mysterious force together. However, Sam withdrew from this action after graduating from high school and lived a happy life with his girlfriend. But his elder brother Dean remained firmly by his father's side and continued to investigate.
However, his father disappeared during the tracking activity. Now Sam reluctantly joined his brother and took a weekend to find the missing father. Originally, he was perfunctory, but because of a terrible tragedy, his girlfriend was also killed by a supernatural force, and Sam, who completely changed his mind, gave up all the thoughts of a happy life and devoted himself to this action wholeheartedly. While looking for their father and helping others along the way, they gradually realized that their father didn't want them to find it. And the truth of the mother's death is also hazy.
