Wall Street data analyst Richard Boca sees ominous patterns: His computer models are behaving erratically, as are the swarms of mosquitos breeding in his apartment, an infestation that attends his psychological meltdown.

While visiting family in Mexico, teenage Alex gains an unlikely companion when he discovers a young chupacabra hiding in his grandpa's shed. To save the mythical creature, Alex and his cousins must embark on the adventure of a lif...