Overview: When it’s time to investigate oil spills, meet the team of biologists who are called in to action. When an aspiring nature photographer joins a group of Buffalo Soldier re-enactors, he discovers history's ultimate outdoorsmen. Once upon a time, in a Wildlife Management Area far, far away, a group of dedicated conservationists put their skills to work, building special rainwater catchment systems, aka “guzzlers," to provide water for bighorn sheep, and any other animal looking for a drink in the desert.