The Geo Bass crew head for the remote waters of Nicaragua in this episode looking for illusive Rainbow Bass on the fly. None of them knew this rare and colourful fish even existed until they began their expedition, and it’s no wonder. They’re found only in the most remote areas of central America, several days of trekking and boating through crocodile infested jungle to a lagoon never before accessed by fisherman. After 3 days of clearing a path, hunting iguanas and experimenting with tackle, the boys finally make it through the jungle where some massive rainbows are waiting for them. This is extreme fishing!