Avengers: Infinity War
Thanos gets an Infinity Stone called the Power Stone by destroying the planet Xandar. He gets an Infinity Stone called the Space Stone by striking a deal with Loki in exchange for not killing Thor, killing Loki in the process, He steals the Reality Stone from the Collector; he gets the Soul Stone in exchange for killing his daughter Gamora. He strikes a deal with Dr. Strange to get the Time Stone in exchange for not killing Iron Man.