Two hundred years after Lt. Ripley died, a group of scientists clone her, hoping to breed the ultimate weapon. But the new Ripley is full of surprises … as are the new aliens. Ripley must team with a band of smugglers to keep the creatures from reaching Earth.

After telling the story of Flint's last journey to young Jim Hawkins, Billy Bones has a heart attack and dies just as Jim and his friends are attacked by pirates. The gang escapes into the town where they hire out a boat and crew to find the hidden treasure, which was revealed by Bones before he died. On their voyage across the seas, they soon find out that not everyone on board can be trusted.