Secret Shores is the main location of The Thundermans: Undercover. Phoebe and Max are sent on a mission to pose as civilians while stopping the Mastermind and other supervillains from taking over the town and bring Chloe along so she could live a normal life while training on becoming a superhero.
Thundercover[]
In Thundercover, President Kickbutt contacts the Thunder Twins and gives them an assignment to go undercover to find out who is sending evil transmissions from Secret Shores. She also tells them that their identities are unknown in Secret Shores and their internet presence was wiped out. Phoebe and Max bring Chloe along so she can make new friends who don't know she is a superhero. Chloe teleports with Phoebe and Max to the a secret beach condo owned by the Hero League, where a superhero named High Tide used to live.
When Phoebe, Max and Chloe capture Malware who was sending evil transmissions to Dr. Colosso to get his gauntlet back, President Kickbutt tells them the Hero League found an encrypted message by the Mastermind on the Evil Web to invite the most vile supervillains to join his new Villain League in Secret Shores. President Kickbutt tells the Thunder Twins that the Mastermind is a threat to Secret Shores and that they have to stay to defeat him. Phoebe and Max let Chloe stay with them while on their new mission.