When Michael G (yes, "G" is his whole last name, and that's why everyone calls him G-Man) has to keep a journal in Mrs. Rosario's class at school, naturally he writes about his ambition to have superpowers and join the superheroes of his city (like Captain Thunderman) in the fight for justice. After all, his friend Billy Demon just got an awesome winged flying suit and superpowers of his own, and now he's the most popular kid in school! Mikey would...

Everybody knows G-Man's powers come from the magic cape he made from his family's magic blanket. But when the extra pieces of his magic cape fall into the wrong hands, things quickly spin out of control! How will G-Man and his superhero friends battle so many bad guys who have all of G-Man's powers? To make matters worse, Wizard Glendolf Williams has bad news for G-Man - splitting up the cape has corrupted the magic, and G-Man is in danger of losing...