Jeremy Wade's Dark Waters — Season 1, Episode 5: Toxic Invader

Episode synopsis

Something is wiping out the fish in the Australia's Fitzroy River, and Jeremy Wade is determined to discover the cause. Evidence points to the arrival of a new top predator, but could something far more insidious be spreading into Western Australia?

About Jeremy Wade's Dark Waters

Angler and biologist Jeremy Wade uncovers the bizarre, the weird and the mysterious as he investigates baffling, unsolved mysteries beneath the surface of dark waters.

More episodes from Season 1

• E1Italy's Lake Monster
• E2Alaska's Lost River Kings
• E3Return of the Outback Beast
• E4Cold Water Mystery
• E6Ice Age Predator
• E7Jurassic River Beast
• E8South Africa's Legendary Beast