[1] While searching for long-lost Mayan treasure using explosives, underwater explorers accidentally awaken a prehistoric predator that can travel on the land and in the sea.

On a small island off the coast of Belize, Jackson Slate is forced by the local crime kingpin, Tariq to dive for lost Mayan gold in the Great Blue Hole.

However, they come across Jackson floating in the water and Henry takes him, as well as Rod and Jane, to his marine biologist friend, Sarah's house to nurse him back to health.

At the lab, the egg hatches, birthing a smaller, similar reptilian creature, which attacks Jackson and Sarah, causing them to lock it in a refrigerator.

After picking up guns at Tariq's compound, they are chased into the forest by the creature before escaping to an abandoned military base, where they decide to spend the night.

Jackson, and Sarah have sex that night before the group gets a response from the military the next morning, which states they're going to bomb the island in order to kill the creature and they have to escape.