Jason Andrews and Simon Anderson on rugged expeditions far off the beaten track, as they journey across the top of Australia, from the Great Barrier Reef in QLD, to the NT's Western boundary. From hidden creeks and billabongs, to historic WW2 plane wrecks, there's always something new to find. With a healthy dose of action, danger, and humour, All 4 Adventure: Across The Top will be an armchair adventure you won't soon forget.