After a super-villain escapes Ghost World on Halloween, the Thundermans head to New Orleans to join forces with the Hathaways and the Prestons to defeat the ghoul. However, saving the day gets complicated when super-powered trick-or-treating, sibling jealousy and teen romance get in the way.

The crossover continues on The Haunted Hathaways S02E09 Haunted Thundermans Part 2 (II).

When a retired super-villain, Thunder Man's old nemesis Evilman moves to Hiddenville, Phoebe secretly begins dating his son.

Phoebe and Max Thunderman seem to be regular teenage twins, but they're in a family of superheroes. Phoebe strives to be normal and use her powers for good, but Max embraces the dark side. Can life ever be normal in this family?

Phoebe's first assignment as a superhero is to protect Hiddenville; Phoebe challenges Max to inject some mischief into their sleepy hometown.

Phoebe's allegiance is torn when she learns that her boyfriend's father might be plotting a return to evil.

Phoebe is sick of hanging out with Link all the time and tries to find him a hobby. They finally find him being a super hero and is happy. However, Link is sent somewhere else and Phoebe doesn't want Link to go. So, she tries to have one final night to hopefully change his mind. Meanwhile, Max needs Billy and Nora to help him make chilly better than Mrs. Wong on a TV show cook off.

Despite hoping to be matched with her favorite hero in the Superhero Mentor Program, Phoebe feels pressure to choose her father instead.

Phoebe must baby-sit President Kuckbutt's troublemaking teen daughter as her latest superhero mission, but the assignment quickly gets out of control

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Unexpected consequences arise when Phoebe uses the Hero League's villain search software to track down a cute boy.

Phoebe and Max return to their elementary school to complete a hero assessment exam and discover that the instructor is a former classmate that Max tormented.

After living a double secret for years, the Thundermans' secret is revealed.

The Thundermans are forced to relocate to another city after their secret is revealed. However, when a new threat rises in Hiddenville, Phoebe and Max risk everything in order to save Hiddenville.

Phoebe worries that Max will revert to his evil ways after he is asked to give a "Scared Straight" talk to a group of young supervillains in prison, but her efforts to protect Max from himself end up doing more harm than good.

Phoebe makes a life-altering decision when her powers combined with Max's powers are not enough to stop one of Max's old pranks from ruining a superhero gathering.

After their requests drive Kickbutt to quit, Max and Phoebe get what they want when Hank is named the new SuperPresident; being the First Family of the Hero League takes its toll on the family.

Phoebe and Max are determined to make their 100th save their best and most memorable one yet, but by ignoring a series of small saves they overlook a supervillain plotting revenge on Hank and Barb.

Max and Phoebe advance to the final tryout for a spot on an elite superhero squad, but a new super villain with a surprise connection to the Thunderman family may force them to sacrifice their crime fighting dream.