The following day, Carlos Seguin (Erik Estrada) and Tracy Taylor (Julia Benson) begin to investigate the killings and discover a dying man who has also been attacked by the Chupacabras.
Later in the film, DEA Agent Perez (Aleks Paunovic), one of Seguin's partners, is searching the field with his dog.
The Chupacabras attack a group of teenagers during a Cinco de Mayo party, forcing Sienna (Nicole Muñoz), Carlos' daughter and one of her friends to hide inside the school.
However, later while they are recovering in their home, another pack of Chupacabras attacks, this time injuring Sienna and killing her friend, Brooke.
Using the signal from a transponder that Taylor tagged unto one of the Chupacabras, the group trace the pack of monsters into a nearby warehouse.