After getting a taste of the superhero life, Mike pleads with Pat to let him join the team. Elsewhere, after seeking help from Thunderbolt, the JSA prepare for a confrontation with The Shade.

As Supergirl and Zor-El make their return to National City, they are determined to keep the Phantom Zone behind them and enjoy being superheroes together. Unfortunately, their overzealous efforts backfire, creating a whole new threat to National City.

Jimmy breaks down basic arithmetic using pop-culture references in a new Popular Mathematics, then catches up with Andy Samberg and Madelyn Cline before welcoming musical guest Andrea Bocelli.