In the wake of one crew member's demotion, another pushes for a promotion; Chef Ben's plan to promote Ellie stirs tension with Daisy; A crew night out explodes into a full-blown showdown, leaving Joao caught in the middle and forced to pick a side.

Tensions boil over when a crew member stirs chaos among the team; their behavior tests loyalties and patience.

Harry makes his move with Brianna, but just as sparks begin to fly, he suffers an injury; Wihan ignites tension within the ranks when he oversteps Lara's department; things heat up in the galley as Anthony contemplates leaving his position.

The Thalassa crew throws a vow ceremony for the guests; Culver breaks the captain’s big rule.

After charter guests depart with a surprise gift and a daring offer for extra tip money, Capt. Jason grants the crew a long-awaited day off, but time away only fuels the drama as Daisy reaches her breaking point with ongoing infighting.

Chef Ben begins to feel Daisy no longer has his back and when a demanding charter guest sends him spiraling in the galley, her attempt to step in only deepens the rift between the two heads of department.

The crew reels and bands together in the wake of a serious event, Capt. Jason handles not one but two difficult matters between crew members; when a person on the deck team is forced to leave the boat, the hierarchy on the exterior gets a shakeup.

Adrenaline-junkie guests test the boundaries on Katina; Lara and Wihan's working relationship comes to a head when Capt. Jason intervenes; a disgruntled stew lets their attitude get the better of them when they get sassy with the captain.

Capt. Jason embarks across the dazzling waters of the Seychelles with almost an entirely new crew on the larger-than-life motor yacht Katina. The enormity of the boat puts new Chief Stew Lara and her interior team to the test. Chef Tzarina and Lara are reunited after a previous working relationship and tensions quickly surface as their clashing styles ignite old frustrations. Tzarina faces an infestation of weevils in the galley while she tries to find her stride with her new sous chef, Anthony.

A not-so-secret kiss puts relationships onboard under serious strain, with consequences that leave one crew member stripped of their stripes; A high-pressure dinner service takes an unexpected turn, leaving both the guests and Capt. Jason stunned.

The deck team tries to recover after a mishap with the captain; a new stew joins the crew and instantly makes waves; the chef turns one of the guests into a work of art.

Chef Ben and Jenna try to take their flirtations to the next level, but Eddy’s jealousy and Mike’s interference get in the way. After Mike crosses a line with Daisy, tensions explode across the boat. Crew gossip sparks a room swap. A shrimp-cocktail dispute causes Daisy and Ellie to clash.

Several crew members don’t take Captain Jason’s demands seriously and find out he means business.

The aftermath of an intense evening results in a drastic crew dynamic shift; Tzarina and Lara disagree over plating, causing them to clash.

A crew shakeup fuels Jenna’s jealousy and distracts Chef Ben in the kitchen. A string of missteps leaves Daisy and Capt. Jason scrambling to regain control before mounting guest complaints sink the charter.

The arrival of a new stew pushes Jenna’s jealousy into overdrive. A fight between Daisy and Ellie over shrimp cocktail puts Chef Ben in the middle. After Eddy reveals a text that changes everything, Chef Ben must decide where he stands with Jenna.

The crew gets in hot water with Captain Jason; Magda struggles in the laundry; a pirate-themed party challenges Culver to earn his title of "Entertainment Officer," but when guests ask him to jump in the hot tub, Tumi is shocked by what she sees.

Capt. Jason introduces anonymous guest feedback cards and the crew celebrates a record-breaking tip. During a crew night out, personal tensions bubble to the surface when Alesia’s romantic rejection sparks fallout, and a game turns explosive between her and Chef Ben.

The crew deals with a medical emergency onboard; Capt. Jason faces a tough decision when a crew member gets caught drinking on the job; a deckhand wants to take his relationship to the next level.

As Capt. Jason reunites with his all-star heads of department Chef Ben, Daisy and Joao for a high-pressure opening charter with The Real Housewives of Salt Lake City, a sudden crew emergency rattles the boat before guests even board.

Capt. Jason gets involved when chef Tzarina refuses to fulfill a guest request; Luka feels like a stew might be interested in him; the final night of the charter season leads to arguing, crying and relationships in shambles.

A high-stakes four-day charter with a vow renewal gets off to a rocky start when Jenna’s cabin mistake puts the interior team under scrutiny. As pressure mounts in the galley, a sharp comment from Chef Ben pushes Ellie past her limits and forces Capt. Jason to step in and restore order mid-service before the charter spirals out of control.

Capt. Jason draws a line in the sand with his HODs before the final charter; a returning charter guest proves difficult for the galley team; the crew says goodbye.

Peace in the galley comes at a price when Chef Ben introduces a pet-name penalty to keep tensions in check. Ellie makes a bold move on Joao. Alesia stirs the pot by pulling Eddy away from Jenna.

The crew puts together "Fear Factor" inspired games for the charter guests; Tzarina and Lara confront Wihan after a messy beach excursion; the deck crew starts to question Wihan's leadership and Jason gets involved.

As Alesia scrambles to bury a regrettable text, gossip spreads faster than she can contain it; Chef Ben finds his footing in the galley until a broken oven threatens to derail the charter and push him back into crisis mode.

Heavy wind and rain threaten to drown a difficult beach picnic; a stew takes liberties with her break time; the guests experience a dinner fit for a god; on a night out, romantic entanglements get knotty when a surprising new hookup happens.

Bri and Harry try to define their relationship; the crew picks up their last charter guests who can't keep their food down during a swelly charter; during the last beach excursion, the deck team commits their biggest error of the season.

The charter guests continue to be on edge with each other; a new stew comes aboard, giving the interior relief while captivating the deck team; a crew member over-commits to the Cancana surprise kiss threatens to ruin the party.

The crew erupts in an argument when a deckhand meddles in the stew's drama; a date goes awry when chef Tzarina reveals her true feelings.

Harry struggles with his new responsibilities on deck; the interior tries to keep it together in housekeeping; Tzarina attempts to take control of her department; a sudden lightning storm threatens Circus Night for the guests.

The crew hosts a prom night for the charter guests after their adventure to the Great Barrier Reef.

After a surprising hookup, the chef ices people out. A family comes aboard and enjoys a meal in a remote location. The tender nearly capsizes as the crew races to free it from a disappearing island. A mistake on deck causes the boat to hit the dock.

A relationship onboard explores new depths while another one finally breaches the surface; chaos ensues when charter guests become entangled in each other's dietary preferences; single charter guests give the deckhands a run for their money.

The deck team gets a surprising new leader, which causes resentment to grow within the department; the interior struggles being one stew down; the chef and the chief stew get a blast from the past.

Aesha gives Magda a second chance at service; safety issues come to a head between Captain Jason and Jamie, but when Jamie doesn't agree with the captain's orders, he tries to get the deck team on his side.

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

Jason's investigation of the deck team presents him with a difficult decision; Magda finds herself in hot water when she gets caught on the phone again; charter guests request a holiday party that calls for Culver and Aesha to dress up.

Wihan, in love, writes a heartfelt letter; Harry attempts to rekindle romance with Bri; Lara's team criticisms irritate Wihan, with silver hot pants becoming the breaking point.

With Thalassa in turmoil, Captain Jason tries to find his footing with his new team.

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

Anthony puts Tzarina in a bind causing her to crack under pressure; Harry's fate on Katina is determined after knowing the extent of his injury; Marina asks Wihan on a date, sparking tension between her and Tzarina.