EXCLUSIVE: 'Deadliest Catch: Dungeon's Cove' Shows Just How Unpredictable -- and Costly -- the Seas Can Be

Stacy Lambe

Sea life off the coast of Oregon is deadly as it is rich, with millions of dollars up for grabs each Dungeness crab season. While huge paydays are rewarded to the crews who stick it out, thousands of vessels and lives have been lost along the most Pacific Ocean's most dangerous commercial fishery in the world.

In ET's sneak peek of an all-new episode of Deadliest Catch: Dungeon's Cove, the sea proves just how unpredictable -- and costly -- it can be.

MORE: 'Deadliest Catch' Star Johnathan Hillstrand's Rookie Mistake Lands Him in Hot Water

Aboard the Excalibur F/V, Captain Chris Retherford faces down 40 knot winds and 18-foot swells as he and his crew try to finish up one last run before going back to port. The danger here is the unpredictable waves that can easily wipe out everything they've pulled up from the bottom of the ocean floor.

"When they have to reach out and pull the pots that I worry about getting a wave and taking them," Retherford says. What's overflowing with crab one moment could easily be gone the next as the waves come crashing onto the vessel.

This is only one of the many dangers the fisherman along the stretches of water between Oregon and British Columbia face on a daily basis. Last week, ET got a look at the treacherous stretch of water of the Newport Bar, off the coast of Oregon.

Deadliest Catch: Dungeon's Cove airs Tuesday nights at 9 p.m. ET on Discovery.

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