Deadliest Catch

"Bering Sea dementia" is a problem crews will encounter as they get later and later into the work season. All the icy weather, steep waves and grueling tasks start to take their toll on the people. With little sleep and the need to stay in the elements all day, crew members must watch it that they don't go nuts. Hallucinations, fatigue and other troubles make some of the workers lose track of what they're doing, or lash out in an explosion of bad tempers. Two rookies on the Wizard get into a fight, and the crew of the Cornelia Marie also deal with poor health and uneasy tempers. Will they be able to wrap up the season and head safely home? It's one of the most riveting episodes of the year.