The whole world has a REALLY BIG PROBLEM! When a mysterious, gigantic blob is spotted soaring towards Earth, the President of the United States calls in the nation's greatest problem solvers: Peg and Cat. With the help of incredible top-secret devices, Peg and Cat work tirelessly to figure out what's up in outer space. Circling the globe, Peg and Cat assemble a cast of hundreds to help them solve the problem and SAVE THE WORLD!