National Geographic's Braving Alaska

This video is only about an hour long, but it tells the compelling stories of families that live totally Walden Pond-style off the grid lives deep in the Alaskan wilderness. I saw this film on television back in the early 1990s when it first came out, and watched without blinking. Because it's a short feature, video rental stores often rent it out at a discount (e.g., 99 cents). It's worth picking up.