In an attept to create a being that could survive in space, Nancy Burnham has finally perfected a technology that splices human genes with computer chips, creating a super-creature called V.I.P.E.R., which can survive in any atmosphere. However, before they can launch V.I.P.E.R. into space, the prototype is stolen and accidentally released just north of the Mexican border. V.I.P.E.R. was designed to dominate any environment it inhabits, and the race is on to find the creature before it destroys everything in its path.