Twins Phoebe and Max are enjoying their superhero lifestyle, but when one 'save' goes awry, the Thundermans are sent back to Hiddenville. While Hank and Barb enjoy their return, and Billy and Nora look forward to a normal high school life, Max and Phoebe are determined to regain their superhero status.

Two senior BFFs make a last-ditch attempt to be seen. But when one of them becomes a ghost, she'll need to really live her best life — while she can.