Twins Phoebe and Max are enjoying their superhero lifestyle, but when one 'save' goes awry, the Thundermans are sent back to Hiddenville. While Hank and Barb enjoy their return, and Billy and Nora look forward to a normal high school life, Max and Phoebe are determined to regain their superhero status.

Μια οικογένεια υπερηρώων προσπαθεί να ζήσει μια 'φυσιολογική' ζωή, απομακρυσμένη από την ενεργό δράση. Αυτό όμως δεν θα κρατήσει για πολύ, καθώς θα κάνει την εμφάνισή της μια απειλή από το παρελθόν...

When a young boy finds a message from his late grandfather, his ordinary family discovers an extraordinary secret about themselves — and the universe.

Taking place after the final episode, the Iggarashi Family and FENIX reunite for one last battle against Giff and the Deadmans.