group is attacked by creatures resembling giant spike-covered tentacles, which eat Atherton. Canton theorizes that the creatures are an extreme evolution of the Ottoia, which drain their victims of their bodily fluids and then eject the carcasses. The survivors flee, but Mason is grabbed by a creature and kills himself by detonating a grenade. Mulligan elects to stay behind in the crew's galley until a rescue party can arrive. While arguing with the others, a creature slips in through the range hood; Mulligan scares it off but is ambushed and devoured by another. In a running battle, the survivors find themselves being herded towards the bow of the ship, where they find a "feeding ground" full of bloody skeletal remains. Attempting to rid himself of any witnesses to his insurance scam, Canton misleads the others to the bow while he moves towards an exit route. The creatures break through the hull, flooding the lower decks and separating the survivors. Hanover wounds Joey in an attempt to slow the creatures, but Joey escapes. Joey later finds Hanover being devoured by one of the creatures. As an act of mercy, he leaves Hanover a gun, but Hanover wastes his only shot trying to kill Joey and is consumed. Finnegan and Trillian spot an island and return to Finnegan's boat, but — having lost the engine parts — find it useless as a means of escape. Joey returns and begins improvised repairs, and Finnegan sets the boat's autopilot to crash into the Argonautica and detonate the torpedoes. Trillian returns to the cruise ship and locates a jet ski with the fuel they can use to reach the island, but Canton arrives armed with a flare gun. Canton asks Trillian to join him or hand over the keys, but she flees and he chases her. Finnegan pursues Canton to the ballroom on the main deck, saving Trillian. The creatures smash through the main deck and are revealed to be tentacles of a vast deep-sea monster — the Octalus— rather than individual entities. The Octalus grabs hold of Finnegan, who shoots it in the eye, blinding it and freeing himself, and he and Trillian escape on a jet ski. Canton flees the Argonautica by jumping onto Finnegan's boat, but he breaks his leg doing so. Crippled, he is unable to disable the autopilot and dies as the boat crashes into the Argonautica, detonating the missiles