My Seanna struggles to pull off a successful Charter on the heels of two dramatic exits from crew members, Chandler and Caroline. Tensions rise as newly-appointed bosun, Ross, finds himself at odds with an easily-riled Rhylee. When replacements Tyler and Laura join the crew, the ship is turned upside down with the arrival of two new crew, Tyler and Laura. While Kate and Josiah adjust to their new stew's critical disposition, Adrian and Ashton both compete for her undivided attention. As their sixth Charter begins, a shocking accident threatens the life of one of the Deckhands.

Fast action by Rhylee and a cameraman save Ashton's life. The new charter guests like expensive food and are offended when served chicken, which is 'what poor people eat'. After the charter a shaken Captain Lee has a "come to Jesus" meeting where he analyzes Ashton's accident and shows how close they came to disaster.

The aftermath of Ashton's accident has the entire crew shaken up, especially Captain Lee. While the deck crew is on edge with a man down, Laura struggles to fall in line with her third stew role and her boss Kate.

Kate deals with Laura's insubordination after being told to "check" herself. Ross is at his wits end with Rhylee's attitude after she confronts him once again about feeling like the low man on the totem pole.

The crew's wild evening out prompts a passionate, late-night tryst for Rhylee and Tyler, but there's trouble in paradise for Ashton and Laura; Josiah faces childhood insecurities when guests remind him of the bullies he faced while coming out.

The crew corrals the jet ski. Rhylee starts inserting herself in Tyler's future which concerns him. After the charter Tyler and Rhylee go on a date and Tyler says he wants to 'tap the brakes' on their relationship. The next guests are a group of women who start bickering with each other. The primary goes to sleep on the aft deck and nobody can wake her to send her to bed.

Adrian's plan for a centerpiece filled with living sea creatures is nixed by Kate, leaving him frustrated. Rhylee feels awkward around Tyler, while Laura and Ashton make plans for the future. Kate forgets the primary's birthday causing the entire crew to scramble. Ross hopes to reconnect with his son's mother while Laura confronts Adrian over his inappropriate comments.

Andy gathers the crew of M/Y Sienna to discuss the season.

Fast action by Rhylee and a cameraman save Ashton's life. The new charter guests like expensive food and are offended when served chicken, which is 'what poor people eat'. After the charter a shaken Captain Lee has a "come to Jesus" meeting where he analyzes Ashton's accident and shows how close they came to disaster.