Michael K has just started at his new school, but as if his very first day wasn't going to be hard enough, he's been forced to make friends with the two other new kids who are really weird.

But, as Michael K soon finds out, Bob and Jennifer are not actually weird kids, they're aliens! Real aliens who have invaded our planet with one very important mission to complete: to convince 3,400,001 kids to BE SPHDZ too, or the Earth gets turned off! But with a hamster as their leader, "kids" who talk like walking advertisements and Michael K as their first convert, will the SPHDZ be able to keep their cover and complete their mission?