Danni and Diana compete for the new deckhand’s affection. Gary and Daisy adjust to roommate life. A primary charter guest celebrating her 50th birthday has high expectations. Daisy fears the boat will run out of rosé, so she sends Danni on an unexpectedly difficult mission. Chef Cloyce gets frustrated with the interior team, which puts Daisy on the defensive. The primary suffers a severe jellyfish sting that threatens to ruin the entire trip.