
Phoebe, Max and Chloe must investigate a new threat in the town of Secret Shores and aim to nurture Chloe's superhero abilities while on this mission.

Mrs. Wong visits Secret Shores and threatens to reveal the Thundermans' superhero identities to the town; but Max and Phoebe's plan to have Dr. Colosso keep her quiet backfires in ways they could not have imagined.

Billy brings a new sidekick, Steve, to town and wants him to join the T-Force; Phoebe and Max agree to consider him, but when they eventually reject Steve for having a very lame power, he turns evil.

Chloe's birthday party is cancelled, and Max and Phoebe compete to throw her a new one; when Max's time-stopping birthday gift falls into the wrong hands, he must work with Phoebe to stop some party poopers from ruining Chloe's birthday.

Chloe, Jinx and Booch are designing a school mascot, but Max and Phoebe's feud over their jobs ruins the project; Chloe criticizes them, and the twins realize their fighting affects Chloe now that they're guardians.