Set after the events of Captain America: Civil War, Ant-Man and the Wasp functions as an origin story. Dr. Hank Pym, the original Ant-Man, sends Scott Lang on a mission to run down information about Pym's earliest exploits. Most importantly, Pym wants to know whether his original superhero partner, The Wasp, is still alive. At the same time, Lang, the current Ant-Man, has to make the life balance between being a superhero and a dad work.

When the arrogant warrior Thor is banished to Earth from his homeworld of Asgard, he must fight to reclaim his lost powers. Pursued by an invasion force sent to destroy him, the fallen God of Thunder must rise to the battle and learn what it takes to become a true hero.