After Zin leads an escape from an extraterrestrial prison, Cole comes to Earth to track the fugitives from his planet, who have taken over human bodies.

Cole tracks an Enixian drug dealer who has been peddling a form of alien ecstasy that has deadly consequences for humans.

Cole tracks Raahm to the site of an alien crash in Roswell and the secret air base where the wreckage is supposed to be hidden.

When he realises he has inhabited the body of a kidnapper, an alien con artist enlists Cole's aid to prevent a killing.

In Chicago, an alien is spreading a deadly disease to women he seduces; Cole, Mel and Nestov must catch the culprit that is spreading the disease.

Zin's bodyguard enters the body of a German shepherd which morphs into a hybrid creature that has extraordinary strength.