Ant-Man 3

In this thrilling new adventure, Scott is living life to the fullest as he tries to juggle between his normal life and superhero life as the titular Ant-Man. When his now-teenage daughter, Cassie, builds a mysterious device in the basement, the device malfunctions as it sends both her, Scott, Hope and her parents down into the Quantum Realm. From there, the two families all try their best to survive whilst also encountering a lot of the realm's mysterious inhabitants and settings. However, they are forced to come into blows with a ruthless and tyrannical conqueror who threatens the safety of the multiverse.