"Ant-Man and the Wasp" unfolds with Scott Lang, under house arrest following his involvement in "Captain America: Civil War." Despite striving for a low profile and focusing on his relationship with his daughter Cassie, Scott is drawn back into the superhero world when Dr. Hank Pym and Hope van Dyne seek his help.
The core of the story revolves around a mission to rescue Janet van Dyne, Hope's mother and Hank's wife, from the Quantum Realm, a dimension beyond time and space where she has been lost for decades.
Hope, now equipped with her own shrinking suit as the Wasp, partners with Scot for this mission.
As the characters delve into the Quantum Realm, they encounter new adversaries and unexpected challenges, including the mysterious and formidable Ghost.