When Will's father is killed by a dragon, he embarks on an epic journey filled by vengeance that leads him to an ancestral home which he stays at and works for the tyrannical Sterling in order to learn how to slay the beast. While he is training, he befriends Sterling's daughter Kate, and Sterling becomes increasingly suspicious of and threatened by Will. He orders his men to kill him but Will escapes. Now Will must evade Sterling's men whilst trying to avenge his father.

While on vacation in a resort in Mexico, the Americans Jeff, his girlfriend Amy, her best friend Stacy and her boyfriend Eric befriend the German Mathias in the swimming pool. Mathias invites the group to visit the ruins of a Mayan temple with his Greek friend Dimitri in an archeological field where his brother Henrich and his girlfriend are camped eighteen kilometers far from the resort. They hire an old taxi and when they reach the spot, they are surrounded by Mayan villagers armed of revolver, rifle and bow-and-arrow that kill Dimitri and do not allow the group to leave the place. They climb a construction covered of creepers with red flowers, and remain under siege of the locals. When they hear a cell phone in the bottom of a well, Mathias decides to seek the apparatus using a rope that breaks and he has a serious accident breaking his back. Amy and Stacy go to the bottom of the mine to rescue Mathias and they find many corpses covered by the climbing plants; further...