Desert: Behind the facade of Australia's dramatic scenery lurks a motley crew of silent assassins, con artists, gang members and brutal brawlers. (S1, ep 3) [S]
Wetlands: As water flows from Australia's highlands into the seas, environmental changes set the stage for unexpected clashes between predators and their prey. (S1, ep 2) [S]
Forests: From the oceans and the forest to swamps and deserts, Australia is home to many of the world's most toxic, venomous and dangerous creatures. (S1, ep 1) [S]