Rough waves and fierce weather make winter on the Bering Sea a difficult and dangerous place to do business. For the fishermen who work these waters, risk to life and limb is just another part of the job. Deadliest Catch takes viewers deep into the Bering Sea through three of the toughest fishing seasons in the world. Season 2 starts with king crab season, which serves as a warm-up for the fast and furious cod fishing season. Only 25 boats have licenses to cod fish because most don't think the work is worth the reward. The five man crew work 72 grueling hours straight, deliver their catch, and then go back out. With cash from cod and a full hold of bait, the crews changeover their fishing gear and head deep into the icy-filled Northern waters of the Bering Sea, home of the Opilio crab. Opilio crab fishing brings colder temperatures, rougher seas and is even more dangerous.