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.
