After rescuing Janet van Dyne (Michelle Pfeiffer) from the microscopic quantum realm at the end of “Ant-Man and the Wasp,” Scott Lang aka Ant-Man (Paul Rudd) and his girlfriend, Hope (Evangeline Lilly), Janet’s daughter. have seen significant life changes. In the aftermath of “Avengers Endgame,” Scott has written a best selling book detailing his life, and Hope is heading up her father’s company in search of ways to benefit humankind.