When there is gold on the line, it's every miner for themselves. An all-new season of Gold Rush gets underway Friday Oct 12 9p on Discovery!

A predatory bear stalks a homestead forcing the rancher to aggressively protect himself and his cattle. A jetboat engine failure in the river rapids puts Buck's operation in jeopardy. A violent storm forces bush pilots to make an emergency landing.

A first look at the new season of Alaska: The Last Frontier and the new series River of No Return.

The Dakota Boys arrive at McKinley Creek ready to get on the gold.

Todd Hoffman sends an ex-marine to keep an eye on the Dakota Boys.

A huge boulder crashes down on the mining site while Dustin is diving.

Fred's not-so-silent investor Todd Hoffman makes a surprise visit.

73-year-old Dakota Fred gets married for the fourth time.

Fred is in imminent danger when his suit's heating system fails on a dive.

Winter is fast approaching but The Dakota Boys are short on time and money.

The crew is stunned when a flash flood plunges down McKinley Creek.

After a devastating end to the season due to a major storm, the miners give us an in-depth look at the ups and downs of mining for gold in whitewater rapids, and what the future looks like for the Dakota Boys and their crew.

Dave Turin, a former Gold Rush miner, sets out on his own prospecting for an abandoned gold mine to reopen. But when an investor backs out, Dave has to decide if he's willing to risk his family's life savings on his ability to bring home the gold.

Dozer Dave bets his life savings that he can unearth piles of gold from an abandoned mine using salvaged equipment and a team of amateur miners.

Dave faces a nightmare scenario when the ground he's mining goes cold and no one knows why With his season hanging in the balance, the pressure mounts for Dave to get them back on the gold.

Dave's entire season comes down to the final 24 hours and a bold risk that threatens to shut down his operation and force him out of the gold game for good.