Long river trips can take us deep into some wild places aboard a vessel that will carry far more than the basic necessities. In the season finale of Das Boat, Mustache Rob and Frank are back on the Savannah River in Georgia, headed more than 50 miles downstream into water that neither of them have ever seen before. It's an exploratory mission, of sorts, though the Savannah is far from wilderness, and Rob and Frank's journey is more National Lampoon than Heart of Darkness. At the terminus of their trip waits Wade Plantation and some heaping platefuls of southern hospitality. All Rob and Frank have to do is bring some catfish for the table and safely pilot Das Boat downstream.