User blog comment:ImperiexSeed/Sam's NOT the hero of the show!/@comment-121.120.127.9-20150728131438

Sam save the world in the end of season 5 and he is ready to do it again in the end of season 8.By the way Dean also save the world in 2 season. Specifically in the end of season 7 and season 9 when he killed Abaddon before she taking over the world.