Avengers

The core plot of the first Avengers movie (2012) involves S.H.I.E.L.D. Director Nick Fury assembling heroes like Iron Man, Captain America, Hulk, Thor, Black Widow, and Hawkeye to stop Loki, Thor's brother, from using the Tesseract to open a portal for an alien invasion of Earth. In later films, the Avengers face new threats, like the rogue AI Ultron (Age of Ultron), the cosmic warlord Thanos seeking Infinity Stones (Infinity War), and ultimately confronting Thanos and reversing his devastating snap (Endgame).