With the legalization of marijuana for medicinal purposes, the officers are challenged with upholding the new, controversial law.

The first snowfall of the season challenges the officers with lost hunters and head-on collisions.

Drunken belligerence and lewd conduct at the annual Cowboy Mardi Gras; a family of four goes missing; safeguarding paddlefish from overfishing.

A freak spring snowstorm strands families without water and power; a Winnebago that doubles as a massage parlor; a shootout in a residential neighborhood.

An anonymous call leads to methamphetamine smuggling operation; the small town of Darby has a huge crime rate.

Car fires and wolf-dog hybrids; burglaries and night-time chases on foot.

Produced with the full cooperation of several agencies of the Department of Homeland Security, this reality series focuses on the work of border patrol officials who monitor land, sea and air in a bid to keep the United States secure. The show's producers make no bones about the fact that the series is intended to portray Homeland Security in a positive light. "The show is heartening," says executive producer Robert Shapiro. "It makes you feel good about these people who are doing their best to protect us."