Marcus & his fellow SES emergency volunteers hunt for the “Biggest Defence Overhaul in 50 years” somewhere deep in the Brindabellas (WARNING: parts of this episode contain disturbing remains of earlier reforms who appear to have been victims of foul play). Good news: blockers who seem to be stopping delivery of stuff for Australia’s military – apparently including the departmental Secretary and the Chief of the Defence Force – won’t be able to get away with this for much longer. Details are scarce but the hunt is relentless. Then it’s time to chew over awkward facts about declining rates of flying by our Air Force and falling numbers of days at sea from our Navy’s shrinking fleet. Far from protecting Australia’s sea lanes, our Navy seems mainly designed to protect itself. The Flower Class corvettes of WW2 show an alternative path.