A government doctor, he believes that its healing powers will help revolutionize medicine. Locating one with a cub in an old mine, he chases it. Injured by a passing vehicle, she leaves her cub hidden to lure the pursuing scientists away. 27 years later, Alex meets his grandfather Chava, a former lucha libre champion, energetic wrestling-obsessed cousin Memo, and fearless hip cousin Luna. Just as Alex begins to get his bearings, on his first night he discovers a young chupacabra cub.