Deep in the backcountry of Idaho lies a protected wilderness area known as the Frank Church-River of No Return Wilderness. It encompasses a total of 2,366,757 acres, and it is the largest contiguous wilderness in the lower 48 states. The stunning region is characterized by rugged mountains, deep canyons and roaring rivers. The only direct way to access this area is a flight through steep canyons on a bush plane or a jet-boat journey through Class 5 whitewater rapids on the Salmon River. The wilderness area is home to a small community of homesteaders who are dependent on the pilots, boat captains and each other to survive. Discovery Channel's "River of No Return" introduces viewers to these homesteaders who rely on themselves, their neighbors and their survival skills to live life on their own terms in one of America's last frontiers.
With dangerous rocks exposed by low water, Buck must hit high speeds to keep his jetboat out of harm's way; landing solo on a narrow airstrip tests Katie as a pilot; Aubrey plays matchmaker between her reluctant mare and a stud donkey.
Father and son jetboat captains take on Deadman's Rapids; as a storm bears down, scrambling to re-roof the barn, Pete takes a potentially catastrophic fall; felling a massive dead tree puts Ron and Wes at risk from widow makers crashing from above.
After a rafter goes overboard, a legendary jet-boat captain springs into action to save the man before the river's rapids claim another victim; heavy rains threaten to destroy Aubrey's ranch, and she calls in air support to help save her barn.
A predatory bear stalks a homestead forcing the rancher to aggressively protect himself and his cattle; a jet-boat engine failure in the river rapids puts Buck's operation in jeopardy; a violent storm forces bush pilots to make an emergency landing.
As the winter ice thaws, Idaho's River of No Return flows, and the people living on its shores navigate the raging spring rapids; the small community hustles to work, so they can survive another season in this rugged and dangerous back country.
With the rapids raging, Buck trains his 8-year-old son to be a jet boat captain; ranch caretaker Aubrey tends to her pregnant mare during a risky delivery; in the skies above, a bush pilot mail drop goes terribly wrong.