Water is key to life, but it's in short supply. The planet is getting warmer and soon there will be less water to go around. The animals fighting for freshwater are explored, including viscachas in Peru and hippos in Kenya.

The great plains and savannas are feeling the heat from climate change and out on the grasslands there will be less food and space for survival, which impacts the Iberian lynx in Spain and lions in Kenya.

Forest animals have an incredible home and their trees are nature's engines, filtering water, storing carbon and pumping out oxygen. But climate change is threatening their stability from the Amazon to Canada's Boreal forest.

Temperature is the key to life in a mountain environment, and climate change is forcing mountain animals to travel higher to escape the oppressive heat. Pikas in the Rocky Mountains and nursery frogs in Australia are featured.

Climate change has impacted the balance of life in the wetlands, and out in the marsh there's less water and food for survival, which affects magpie geese in Australia and the Key deer in Florida.

Oceans are getting warmer due to climate change, and rising sea temperatures are an invisible but deadly killer affecting corals of the Great Barrier Reef and tiger sharks along the coast of Australia.

Temperature is a key factor for survival at the Earth's poles, but the arctic is warming due to climate change and the animals affected include polar bears in Northern Canada and king penguins in the South Atlantic.

In 1976, a packed coach crashed into the Amazon killing 39 people. Some of the bodies had been so viciously mutilated by piranhas they could only be identified by their clothes. Extreme angler Jeremy Wade investigates the piranha.

In the deep south there's a fish reputed to have committed a series of violent attacks on humans. The creature's said to be as vicious as a shark & big as a 'gator. Jeremy Wade heads to TX to reveal the truth about the Alligator Gar.

Jeremy travels to Germany where he meets victims of a beast that's been raising its snout above the fresh waters in Europe for the past 700 years. We discover that the Wels catfish is an aggressive predator of man eating proportions.

In the darkest depths of the Amazon lurks a dinosaur. Legends tell of an evil spirit inhabiting an enormous fish. Taller than a man, it's covered in scales & crushes its prey with a tongue made of bone. This is the legendary Arapaima.

A man swallowed whole by a fish, a body eaten alive from within. Another penetrated in a most unnatural fashion, yet more with multiple stab wounds. Jeremy Wade is in pursuit of some of the Amazon's most notorious flesh eaters.

No fish inspires the same terror as the shark. A creature with an insatiable hunger for brutal violence. But at least these killers are confined to the oceans. Or are they? Expert angler Jeremy Wade investigates the deadly Bullshark.

Jeremy Wade heads to the Mekong River in search of one of the world's largest, most terrifying river fish, the giant freshwater stingray. Armed with a venomous 10-inch barbed tail, this 700-pound monster pushes Jeremy to his limit.

Jeremy Wade sets his sights on an aggressive Far Eastern predator that's invading America's backyards. Accused of homicide, & said to breathe air & crawl on land, the Snakehead's a monster that sounds more like a gangster than a fish.

Jeremy Wade travels to one of the few rivers left on earth that will still test a fisherman. The Congo is steeped in legends & soaked in violence. One spirit in particular is said to lure fishermen from their boats to their deaths.