Nullarbor safari Anja,Derek and Simon join critter-wrangler, Harald Ehmann and find more Nullarbor wildlife than they bargained for. Measuring Our Coastline Derek and Simon unpack the "coastline paradox" as they gaze out over the stunning Bunda Cliffs. Yalata Mulloway The team go fishing for Mulloway and discover a satellite tagging project aimed at protecting this iconic fish. Diprotodon Dig The team join a fossil dig in the badlands of South Australia and discover the world's largest marsupial.