Frankie notices Cheese is behaving oddly, and saying that he's "Gotta Go!" somewhere. Bloo notices this, and ends up concluding that Cheese is a space alien. Bloo then decides that he needs to capture Cheese to keep him from sucking out anybody's brain. Meanwhile, Madame Foster goes to court over the owner of a sandwich.
Episode number: 5x1 Airdate: Friday May 04th, 2007