Chaos breaks out when a meteor crashes on Earth, bearing one-celled organisms. The problem is that they begin evolving at a pace much faster than what happened on our world. Changes that took billions of years happen in one month. As the film starts, they’re kept within the confines of a cave, but what’s going to happen when they get out?
[Four of the people investigating the cave are a community college professor (Duchovny), his geologist buddy (Jones), a “wannabe” fireman (Scott), and a government scientist (Moore).]