Altitude determines what conditions and creatures dominate in Denali National Park.

Alaska's deadliest thrive in one of America's last wild frontiers.

Many Alaskans rely on heavy-duty equipment like bush planes, logging cranes and fishing boats to make a living. What happens, however, when the tools of the trade break down and the nearest help is hundreds of miles away? Braving the elements in wild, remote corners of the state to repair super machines are the full-service master mechanics at Jim's Equipment Repair, an Anchorage-based company serving residents since 1994. "Big Fix Alaska" chronicles the around-the-clock "rescues" made by owner Jim Evridge and his team, from stranded crab boats in the middle of the Bering Sea to frozen multimillion-dollar cranes near the North Pole.

Adventures expose the harsh working environments endured by Alaska's fishermen.

When it comes to dating on the island of Kodiak, Alaska, residents there often say, "The odds are good, but the goods can be a little odd." So six native Alaskan women -- fed up with scruffy men who are preoccupied with hunting and fishing -- cast their love line about 5,000 miles away in the sun-splashed and romance-filled city of Miami. This six-episode series documents how the women trade their rugged boots for high heels and fancy dates with firefighters, football players, personal trainers and cops. The cast includes Tina, who knows what she wants and how to get it; Jenny, who looks forward to ditching long socks and long johns for dresses and makeup; single mom Heather; Sabina, a free spirit who wants to be swept off her feet; quintessential Alaskan tomboy Lacy; and 22-year-old Haley, the youngest on the trip.

A journey to the last frontier: the beautiful, remote and deadly state of Alaska.