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.

As the gang hatches an illicit scheme to get to the bottom of the deep-sea mystery, John B confronts Sarah while Pope jumps at the chance for revenge.

John B believes he's made a breakthrough in the hunt for the gold, but his desire to include Sarah in the quest causes friction among the friends.

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.

With his options dwindling and enemies closing in, John B looks for an exit plan. Sarah feels pressured to pick a side. Pope lets his emotions out.

John B tries to evade capture as he zeroes in on the gold, but a promise to Sarah could derail his plans. Back home, his friends face life without him.

With time running out, John B and Sarah strike an uneasy bargain, while Kiara, JJ and Pope search for evidence that could implicate Ward and Rafe.

JJ cooks up a risky plan to help out John B. Pope hunts down information about the key. Kiara and Sarah both deal with family fallout over the Pogues.

John B bristles when Sarah reconnects with a former flame. Ward's web of lies starts to unravel. Pope discovers a shocking family secret.

Reeling from Ward's actions, Sarah finds her loyalties to John B and the Pogues put to the test. At the annual bonfire, jealousies and tempers flare.

Armed with new clues, the group braves perilous roads and swampland as they race to keep part of Pope's history from falling into the wrong hands.

The Pogues deal with a slew of setbacks — a medical emergency, a nosy neighbor, parental ultimatums — as they attempt to save Pope's family legacy.

John B, Pope, JJ and Kiara brace for a showdown on board the ship, while Sarah realizes the harsh truth of her distressing family situation.

Big John and John B pick up where they left off — for better or worse. Cleo and Pope form a new club. Rafe reconnects with Ward.

With Singh on the move, John B and JJ scramble to catch him. Pope makes a breakthrough. Sarah questions where her loyalties lie.