Malcolm Webster is a 5th-Grade student who will try basically anything to avoid completing his homework assignments. His excuses are normally harmless, white lies - however, when tasked with completing a 10-page term paper at the end of the school year, Malcolm decides it's time to go big or go home. Malcolm tells his teacher, Mrs. Dawkins, that he'll be unable to write his paper because he will soon be abducted by aliens. But, when these made-up creatures prove themselves real, and hungry, Malcolm's hijinks trigger a full-scale invasion, and he must be brave, honest, and yes, a bit of a whiz kid, to save the day.