The year is 1715, and the scene is set in the Caribbean. Gumball is captured by pirates and this opens up a brand new life of adventure for him. He will experiences thrills, love, lose, mystery and he will go through it all with the help of an unexpected family member.

Gumball and darwin join the U.S air force during WWII, but war is the least of gumballs problems, ever since penny left gumball he started drinking heavily. Can darwin help gumball out of his depression or will he drink down his emotions forever.