Captain Jason Chambers introduces a world of underwater adventure to charter guests along the world-famous Great Barrier Reef in Australia; first-time bosun Jamie faces some initial challenges; new chief stew Aesha clashes with an ornery chef.

Aesha and Ryan's opposing views on service are tested during an explosive lunch; Brittini stands up for herself on deck; Benny takes issue working in the anchor locker; Captain Jason introduces a most improved award that isn't well received.

Benny struggles to stay motivated on deck, while Jamie tries to keep his team in line; Ryan and Aesha's galley communication comes to a head when the guests aren't ready for service; the crew comes together to throw a vow renewal ceremony.

The crew gets in hot water with Captain Jason; Magda struggles with the laundry. Culver tries to ear his title of 'Entertainment Officer'.

The crew unravels as demanding charter guests push them to their limits; Jamie and Tumi disagree over Culver's actions; in an attempt to keep Captain Jason happy, Jamie tries to take control of his deck team.

Magda surprises the guests with a show; Aesha learns that being a barista isn't easy; Ryan struggles to accommodate the guests' demands; an extra tip leaves Brittini in tears.