A powerful, brooding plantation owner in the wild South American jungle along with his charming American mail order bride are threatened by the advance of relentless killer ants who are making their way across the jungle.

Armed with the astonishing ability to shrink in scale but increase in strength, master thief Scott Lang must embrace his inner-hero and help his mentor, Dr. Hank Pym, protect the secret behind his spectacular Ant-Man suit from a new generation of towering threats. Against seemingly insurmountable obstacles, Pym and Lang must plan and pull off a heist that will save the world.

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.