Animal adventurer Donald Schultz goes "Down Under" to Australia, home to some of the most venomous creatures on the planet. His mission is to find animals threatened with extinction by an unassuming toxic invader: the cane toad. He starts in the rugged bush, and when he finds his reptile targets, he takes venom and DNA samples from each one, in hopes of preserving these magnificent animals for future generations. Donald then journeys to the Southern Australia, where he tackles a thrashing emu that weighs as much as he does. His challenge is to avoid the flightless bird's razor-sharp talons long enough to get a blood sample for researchers. Finally, when night falls, he heads into the deadly waters off Queensland for his most dangerous mission of all: to grab rare, venomous sea snakes from a moving boat...by hand.