Avengers: Infinity War
The supervillain Thanos comes from a planet called Titan whose people are all dead because of overpopulation. To prevent the same thing from happening to other worlds, Thanos decides to kill half of all living beings on every planet in the entire Universe. To do that, Thanos tries to find six Infinity Stones and bring them together in a glove called an Infinity Gauntlet so that he can make anything he wants to happen with a snap of his fingers.