The Prepper family is prepared for the end of the world. Or, at the very least, the end of toilet paper. Doomy Prepper knows the rules. Never trade sandwiches with Mikey Fuller. He always has tuna fish. Don't stare at Mrs. Nebula's mole. You'll turn into stone. And never, ever talk about the lights. When 11-year-old Doomy notices the mysterious lights above his town have changed color, he makes the mistake of telling his best friend, Peter. Now four other kids want to tag along and solve the mystery, too. The group is convinced the lights are the reason their classmates have all started disappearing. It's not until their teacher vanishes and a nasty substitute named Ms. Martian steps in, Doomy is sure something extraterrestrial is taking place. A surprise fieldtrip orchestrated by Ms. Martian has Doomy and his friends on an adventure they'll never forget. Or survive. At least not without the help of some Prepper family tricks. And, of course, toilet paper.