Danny and Owen start a new camp, two survivors try to escape the island, and the survivors make a discovery that could change everything.

After Todd and Jess decide to get married, Florence and Owen struggle to define their new romance. Casey returns to officiate the wedding. Pack and Steve make a discovery that threatens to tear them apart.

Danny launches an investigation after the survivors discover someone has sabotaged the ship by blowing up the engine. Steve makes a shocking discovery at the bottom of the ship. Honestly, no one is the captain now.

As the ship sinks, the survivors attempt to escape. Will anyone be the captain now ever again?