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 and Max must work together on a series of superhero team-building exercises, but their different approaches to training jeopardizes their future as a crime fighting duo.
When the children learn that Dr. Colosso ruined their parents' wedding years earlier, they decide to recreate Hank and Barb's dream day as their anniversary gift.
While preoccupied with Z-Force training, Phoebe and Max discover that they have forgotten special family events. [1] The whole family goes to prehistoric putt while Max stays home taking care of Dr. Colosso.
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 super villains in prison, but her efforts to protect Max from himself end up doing more harm than good.
When Phoebe learns Max's band plans to dump him, she suspects that his superhero training is hurting his friendships and attempts to help repair things.
When Max gets dumped, Phoebe tries to cheer him up by setting him up with another girl. However, the girl turns out to be an animal activist who thinks Max treats Dr. Colosso cruelly.
Max and Phoebe use their powers to give Gideon a confidence boost, but the gesture backfires when he recklessly starts to think he that he has superpowers of his own. Meanwhile, Billy and Nora accidentally break the Thunder Monitor.
When one of Max's old pranks threatens to ruin a superhero gathering, Phoebe and Max are unable to stop it even with their combined powers, which leads Phoebe to make a life-changing decision.
The Thundermans head to Hawaii for a vacation that they planned. However, when Phoebe accidentally absorbs the evil powers of Dark Mayhem, she becomes determined to complete his plan for world domination and must be stopped.
Tired of hearing tales of Hiddenville's legendary mayor, the kids use a time machine to travel back 60 years to disprove the myths; but when they inadvertently alter the past, the effect is disastrous for their hometown.
Phoebe and Max act as superhero mentors to one of their siblings, but quickly regret selecting Nora after seeing Billy's surprisingly impressive skill set.
As Sarah and Gideon's crushes on Max and Phoebe escalate, the twins attempt to solve the problem by setting them up on a date with each other; Max wants to win back Sarah after he discovers her uncle is a rock star.
Excited to be honored for their heroism with a school mural, Phoebe and Max learn that the artist holds a personal grudge,and the tribute isn't what they imagined.
The Thunder family splits up for the night; the boys decide to survive 24 hours in the wilderness, while the girls try to bond over some of Barb's favorite farm activities from her childhood.
Sparks fly between Phoebe and Cherry's visiting brother, prompting Cherry to grow concerned that she will be overshadowed by this new romance; after Cherry begs Phoebe not to date her brother, Phoebe must decide between love and friendship.
Determined to meet a famous pop singer visiting Hiddenville High, Phoebe and Max devise elaborate schemes to insert themselves into her performance that quickly lead to disastrous results.
Nana and Pop Pop Thunderman come to visit, but when Phoebe reveals Colosso is living in their house, Pop Pop's no-tolerance attitude toward super villains leads him to banish Max and his bunny best friend to the Detention Zone.
Max and Phoebe secretly employ their parents' former sidekick to ease their busy schedule, but the twins' bickering and inability to share provokes an unexpected response from their new sidekick.
After Phoebe chooses Billy to accompany her to their favorite cookie factory's exclusive tasting event, Max and Nora are determined to sneak in and get to the delicious treats first.
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.
Max finally declares his independence from his parents' house rules and moves to his friend's house, where they only rule is that there are no rules; ultimate freedom quickly becomes more than Max can handle.
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 super villain 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.