When 93-year-old Thelma Post gets duped by a phone scammer pretending to be her grandson, she sets out on a treacherous quest across the city to reclaim what was taken from her.
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.