
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.

A new super-fast villain is wreaking havoc in Secret Shores; after Billy's speed accidentally triggers an avalanche, he decides to hang up his cape and retire.

Max bets Phoebe she can't turn off being a superhero and go on a normal date; Chloe helps Phoebe do well on the date, but Max tries to sabotage by crying wolf; suddenly, a real supervillain emerges and puts Max and Chloe in serious danger.

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.