Martin Bridge finds himself with conflicting loyalties as the competition for more badges heats up; and his summer looks a little bleak when his best friends Alex and Stuart are grounded for damaging Pete's ice cream truck.
Martin Bridge and his friends get ready for the science fair, but a classmate refuses to do his part; and Martin gets advice from a grouchy old aunt and learns the importance of helping others.
Martin participates in his school's parade, learns how to draw Zip Rideout from the comic book's illustrator, and rethinks his dream of becoming an astronaut.
Martin Bridge, a big fan of television space cadet Zip Rideout, has a number of experiences, including being locked in a toy store with scary mannequins, that make him realize he is growing up.
