Florence and Owen struggle to define their new romance after Todd and Jess decide to tie the knot, with Casey returning to officiate the wedding. Also: Pack and Steve make a discovery that threatens to divide them.
The survivors board the pirate's ship, which turns out to be a Red Hot Chili Peppers tribute-band cruise. Before long, the survivors divide when some get showers and some don't, plus Pack and Bruce forge a surprise friendship.
Florence and Karen hike into the jungle to find the source that's tainting their water. Meanwhile, the others debate whether they want the pirates to spoil "Game of Thrones," and romance blooms for Steve.