By flipping the pages, the reader may view animated illustrations that follow Ricky Ricotta, a small mouse, his giant flying robot, and his annoying cousin Lucy, as they battle the nightcrawlers from Neptune that are invading through a wormhole. Having a Mighty Robot as a best friend is great, but it's even greater when he can help you build a fort! After some pounding, some banging and some laser-eye welding, Ricky and his Mighty Robot build the coolest fort ever! When Ricky's cousin Lucy shows up, however, she renames the fort a 'castle' and says it needs curtains-rats! But these are the least of Ricky's worries... Nimrod Night Crawler has created a wormhole so he can send his army of evil Night Crawlers to help him take over the world, and Ricky's Robot is trapped in a deep pit! Without his Mighty Robot, it's up to Ricky-and an unlikely hero-to put a stop to this nightmare from Neptune!