Capt. Lee, Kate and Ashton are joined by six new crew members aboard M/Y Valor, as they explore the waters of Thailand. As first-time bosun, Ashton struggles with managing a crew of his own. Kevin stresses out while preparing a high-stakes dinner.

The crew pulls off a once-in-a-lifetime surprise dinner for the primary guests, but Kevin is left with doubts about Kate’s standard of service. During a night out, Courtney is less than impressed with the behavior of her fellow crew members. Brian makes a mistake with major consequences and Ashton crosses a line with a junior member of his crew.

Guests Helen Hoey and Richard Fiore return, but it's their friends who take center stage; Kevin confronts Simone; Abbi continues to struggle; Kevin scrambles to put together a seafood extravaganza; Capt. Lee is less than impressed with dinner.

Charter guest Brandy continues to stress the entire crew with her intoxicated shenanigans, culminating in an emergency beach rescue. When Brian breaks an expensive piece of equipment, Ashton begins to see cracks in his deck team. Meanwhile, Tanner gets stood up for a date with another crew member, and Kevin manages to insult Captain Lee two different ways in a single evening. Finally, Ashton tries to plant some seeds with Courtney but they fail to grow.

Kevin pulls out all the stops with a 10-course tasting menu to impress Lee; a charter group of thirsty single women arrives and requests a provocative show; as frustrations run high, Ashton attempts to reel in a checked-out Abbi.

The crew deals with the fallout from Abbi's impulsive decision to leave the boat; Tanner tries to work through a stomach sickness; Kevin makes a risky dinner menu choice; as Brian and Courtney's romance begins to bloom, Ashton flirts with two women.

Florida State University-alumni charter guests arrive single and more than ready to mingle with the crew. Meanwhile, Simone is out of her element working on service and becomes distracted by her new crush. After being displeased with service, Kevin takes matters into his own hands, undermining Kate. Courtney grows closer to Brian as she tends to his wounded knee and Lee announces Abbi's replacement, in time to help revive his deck team much to the chagrin of Ashton.

The new deckhand arrives just in time as Brian’s injured knee worsens. Ashton tries to ingratiate the new teammate with the deck crew, but his efforts are wasted after an explosive crew night out. Kate and Kevin battle over the control of meal service. When a charter guest is inappropriate toward Simone, Kate is forced to confront the issue head on.

Rhylee jeopardizes her job and relationships with the crew after a dramatic first night out. Tanner gossips about his relationship with Simone as things heat up between them. Still sidelined by his leg injury, Brian gets sent to the hospital by Captain Lee leaving his future on the line. Simone finally confronts Kate about her job duties as second stew.

The crew bonds over a trip to an elephant sanctuary, but Kate’s attitude pushes the others to the brink. A day off at the beach club has Courtney protective over Brian. After being put in her place by Kate, Simone deals with more fires when she learns Tanner has been gossiping about their relationship. The rest of the deck crew realizes they can’t trust Rhylee with information. Captain Lee witnesses firsthand the major dysfunction of his crew after they come home from a day of drinking.

Tanner gives Simone mixed signals by telling her that he just wants to keep things casual, while Ashton tries to squash his beef with Kate after their heated argument the night before. Kate promotes Courtney to second stew after being called out by Simone last charter. The crew rallies to redeem themselves for returning charter guests Master Pearson and Lady Tiernan but a broken extractor fan in the galley and rough seas threaten to ruin the trip for everyone.

The crew tries to redeem themselves with returning charter guests after Ashton cancels a beach picnic which throws the entire boat into complete chaos. Rhylee and Ashton continue to butt heads while Tanner and Simone contemplate their relationship. Brian takes Courtney out on a date and is surprised by her reaction. The entire crew goes out to Patong for an explosive night out. After an intense night of drinking, emotions reach a new high causing Kate to make a dramatic decision.

The crew including Captain Lee are shocked to wake up and hear the shocking news that Kate quit. In Kate’s absence, Simone and Courtney struggle to maintain order in the interior. Ashton doesn’t remember his actions from the night before and has to confess to Lee that he is the reason Kate is gone. Meanwhile, Tanner is surprised to learn that he and Kate kissed. Kevin is sent spiraling when a charter guest, Justine, who is also a professional Chef, threatens to keep a close eye on him. Charter guest drama ensues when the primary’s cousin, Jamie, refuses to share her guest cabin.

Kevin spirals out in response to charter guest, and professional chef, Justine telling him to “step it up.” Much to Ashton’s dismay, Kate returns and interferes in the deck team’s drama. Simone sets out to become a better Second Stew with or without Kate’s help. Ashton is dragged into a photoshoot with the guests and flirts with a charter guest, Molly. The deck crew’s frustrations with Rhylee reach an all time high, forcing Captain Lee to consider a drastic change.

Reality star Alexis Bellino ("The Real Housewife of Orange County") and her beau come aboard Valor. Capt. Lee comes to a decision about Rhylee's future. Ashton invites guests to join the crew for a night out; Kate invites Tanner to a sleep-over.

Tanner and Kate's flirtations become more obvious to the crew; Rhylee continues to feel ostracized by the deck crew that tried to get her fired; after a short-lived reconciliation, Brian and Courtney are on the outs again.

Captain Lee calls a staff meeting to address the previous night's debauchery; Brian refuses to apologise for his behaviour; Kate's patience is tested by sports journalist Jemele Hill; Kevin and Kate butt heads over their final beach picnic.

Putting the final charter at risk, Kate sets Kevin up for failure by allowing him to present the primary’s requested erotic cake knowing she already went to bed. Captain Lee arranges a Full Moon Party on a private beach for the crew’s final night. While Courtney and Brian try to resolve their issues, Tanner makes his final attempt at wooing Kate. Kevin confronts Kate before the crew departs Valor for good.

In Part Two, Andy rejoins the Valor crew to go deep discussing Ashton and Kate's terrifying fight in the van, the dysfunctional crew dynamic and Rhylee's frustrations with the deckhands. Captain Lee is pushed to the limit, and the crew questions his reaction.