Invasion - Unnatural Selection

Seizoen: 1 - Aflevering: 5 / 5 - Eerst uitgezonden: 19 oktober 2005 - Episode ID: 135304

The family of Russell's friend and fellow Park Ranger, Carl, is struck by tragedy. Russell suspects Sheriff Underlay may be hiding something when he starts looking into the tragedy. Larkin calls upon an old flame to help her investigation into the military. Meanwhile, Mariel and Jesse have a big fight and Rose wants a tree house.