After settling in City Hills, Alvin is eager to prove that he has what it takes to be a true hero. His test comes when Dr. Hook returns with a new partner, Raphael, in search of a mystical emerald that has the power to destroy civilizations. Alvin teams up with his own sidekick, Gumball, and together they embark on a globe-trotting journey to find the emerald before it falls into the wrong hands.
