Dan’s little brother is moving into his room and he is not happy about it. Iggy breaks everything and he throws huge tantrums. Then Dan meets new kid Alistair who only eats broccoli, collects bugs, and makes awesome robots. Dan’s friend Chauncey is curious about Alistair and a little jealous of Dan’s new friendship. Everything is fine until Iggy eats some of the bug specimens in Alistair’s bag. Turns out Alistair is an alien and Iggy now has bug DNA. This is a crazy story that will appeal to fans of Captain Underpants. The story is no where near plausible, but that won’t stop kids from enjoying the humor and silliness.