Super-Hero partners Scott Lang and Hope van Dyne, along with with Hope's parents Janet van Dyne and Hank Pym, and Scott's daughter Cassie Lang, find themselves exploring the Quantum Realm, interacting with strange new creatures and embarking on an adventure that will push them beyond the limits of what they thought possible.
Scott Lang and Hope Van Dyne are dragged into the Quantum Realm, along with Hope's parents and Scott's daughter Cassie. Together they must find a way to escape, but what secrets is Hope's mother hiding? And who is the mysterious Kang?