A meteor crashes in the desert, bearing single-celled alien organisms that evolve into monstrous creatures determined to replace all life on Earth with their kind.
Glen Canyon is once again ground zero for an outbreak of the Genus. Only this time, it's happening downtown at City Hall. Ira and his team discover the amazing adaptability of the Genus.
The Genus doesn't give up. With the heat turned up by Ira and the gang, the situation forces the Genus to evolve to survive. Only this time, it evolves a sentient, focused, intelligent being named Scopes.
The Genus has gone underground...deep underground in the sewer system of the fair city of Glen Canyon, Arizona. But, its presence is soon felt when it erupts in a huge outbreak right in town square.
While saving Glen Canyon from a giant Genus amoeba, Wayne accidentally washes the Genus cells into the city's water system where they quickly spread and multiply.
When an oil tanker laden with Genus infested petroleum runs aground near the Galapagos Islands, a disaster of epic proportions threatens humanity. Can Ira and his team save the birthplace of the theory of evolution?
When a swarm of Genus wasps overruns a rural farm, Ira and the team are sent in to deal with it. However, they soon discover it's going to take more than a can of bug spray to stop the quickly evolving Genus.
An outbreak in the French Alps leads to the discovery of a new kind of Genus ... an ice Genus. It's living under a huge glacier, at least until General Woodman sets it free with an untimely detonation.
Ira and his team have to stop the massive meltdown (and the rapid Genus pod spawning) which would wipe out most of the Northern Hemisphere. It's all in a day's work.
After wiping out an outbreak of giant Genus bats, the fire truck needs some repairs, so Wayne takes Gassie to his favorite place in all of Glen Canyon: the junkyard.
General Woodman is involved in an accident that allows the Genus to escape into Paris' underground Metro. With no one to blame but himself, Woodman is forced to ask Ira's team to descend into the dark tunnels on a search and destroy mission.
