An explosion occurs in a classified research laboratory, causing an intense fire. A mutated monster known as the OXCOM (Outside Experimental Combat Mammal) escapes and chases a golden retriever from the same lab, through the surrounding woods. The dog outruns it and the OXCOM hides in a barn. In the barn, Travis Cornell (Corey Haim) is with his girlfriend Tracey (Lala Sloatman). Thinking it is her father, Travis leaves. Tracey discovers the beast and screams, summoning her father who is attacked. Meanwhile, Travis finds the dog in the back of his car and a military/police force is sweeping the area for the escapees. Travis starts to realize the dog is extraordinary and decides to keep it. Meanwhile, an NSO agent named Johnson (Michael Ironside) is dispatched by the corporation to retrieve the animals.