After a hurricane, John B, JJ, Pope and Kiara plunge headlong into danger and adventure when they find a mysterious sunken wreck.

Convinced that the clue found onboard the boat connects to his missing father, John B leads his friends on an increasingly frantic search for answers.

A spooky island legend, a broken friendship and John B’s new living situation keep the crew on their toes as they search high and low for the treasure.

John B finally learns the truth about his dad — and sets off a chain of events that jeopardizes everything he and his friends have fought to accomplish.