It's Quackers Week, and the ship is bustling with guests obsessed with a quirky trend taking over the cruising industry: rubber duckies. As the voyage unfolds, Avery receives unexpected news.

Amid a power outage, Max, Tristan, Avery and Brooke struggle to treat shark-inflicted wounds. As romantic tensions flare between Max and Brooke and new sparks fly between two former flames, the team must perform an emergency operation.