40 years from today, Berlin is a roiling city of immigrants, where East crashes against West in a science-fiction Casablanca. Leo Beiler (Skarsgard), a mute bartender, has one reason and one reason only for living there, and she's disappeared. But when Leo's search takes him deeper into the city's underbelly, an odd pair of American surgeons (led by Rudd) seem to be the only recurring clue, and Leo can't tell if they can help, or who he should fear most.

Armed with the astonishing ability to shrink in scale but increase in strength, con-man 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.