A bonding surfing trip for Zac goes horribly wrong when a Great White takes a hefty bite out of Zac's leg. Then, Tom goes on a pig-hunting trip, but a deadly saltwater crocodile becomes the hunter. Duncan's idyllic lifestyle living on a boat and working on ships all changed when he was bitten by a mosquito. A simple mosquito bite grew into a large ulcer on his arm, then spread to seven sites on his on his body. Doctors diagnosed the relentless flesh-eating bacteria as Bairnsdale Ulcer.