Thanos: what do i have to do to kill get the Soul Stone?
Red Skull: You have to sacrifice something you love
Thanos: You know what? On second thought i don't need it I'll just return the stones. I won't kill half universe after all
Thanos returns the power stone and reality stones and travels to wakanda
Thanos: i came to return the Space Stone
Thanos gives the Space Stone to Thor
Thor: ok thanks
Thor cuts off Thanos' head and Thanos dies
Thor: that's what you get for killing my brother!