90 minutes
1/1/2026
When Chloe develops a destructive new superpower, the Hero League orders her to an elite boarding school for superheroes to learn control of her abilities. Faced with the prospect of sending Chloe away for years, the Thundermans split apart, with Phoebe, Barb and Billy taking her into hiding. Max, Hank, and Nora track their rogue family members, until the two factions face off against each other in a full-on battle for the Thundermans’ future.
Kira Kosarin
as Phoebe Thunderman
Jack Griffo
as Max Thunderman
Maya Le Clark
as Chloe Thunderman
Ariel Winter
as Cognita
Addison Riecke
as Nora Thunderman
Diego Velazquez
as Billy Thunderman
Daniele Gaither
as Superpresident Kickbutt
Rosa Blasi
as Barb Thunderman
Chris Tallman
as Hank Thunderman
Robyn Bradley
as Mee Maw