S04E01 - And Then the Rains Came

S04E02 - Battle of the Leaves

S04E03 - The Ganges Gharial

S04E04 - One Man’s Island

S04E05 - Selva Verde: The Green Jungle

S04E06 - The Plant Hunters

S04E07 - Kalahari: Wilderness Without Water

S04E08 - Emas: High Plains of Brazil

S04E09 - The Feathered Swarm

S04E10 - Kingdom of the Ice Bear: The Frozen Ocean

S04E11 - Kingdom of the Ice Bear: Land of Beyond

S04E12 - Kingdom of the Ice Bear: The Final Challenge

S04E13 - Saguaro: Sentinel of the Desert

S04E14 - Death Trap

S04E15 - Aspen: Dancer on the Wind

S04E16 - Secrets of an African Jungle

S04E17 - Birdwatch from Florida

S04E18 - The Gooneys of Midway

S04E19 - Where Eagles Fly

S04E20 - The Skyhunters