Season 2

1. Flying Carp

Flying fish from Asia are invading America's waterways and turning innocent boating trips into boxing matches as fish "knock out" anglers. National Geographic Explorer Zeb Hogan heads to the Illinois River, one of the areas where their population is thickest, to see what can be done to stop them ... and the answer could be as simple as your dinner plate.

2010-07-18 • 44 min

2. Mongolian Terror Trout

2010-07-25 • 44 min

3. Alligator Gar

Dr Zeb Hogan searches the southern United States for the rapidly disappearing alligator gar.

2010-08-01 • 44 min

4. Land Of Giants

Zeb travels Thailand in search of giant fish; freshwater protected areas.

2010-08-08 • 44 min

5. Jungle Catfish

Zeb Hogan is on a mission to find the giants of the sea.

2010-08-15 • 44 min

6. Alien Catfish

Zeb travels to Spain for the wels catfish, a vicious predator that destroys local ecosystems.

2010-08-22 • 44 min

7. River Invasion

Zeb Hogan attempts to fathom the uncontrolled spread of flying Asian carp in America's waterways.

2010-08-29 • 44 min

8. Raging Amazon

Amazonian expedition to assess the impact of humanity on the area's fish population.

2010-09-05 • 44 min

9. Monsters of the Nile

Zeb faces the crocodiles and goes in search of Africa's biggest freshwater fish: the Nile perch.

2010-09-12 • 44 min

10. Ancient Beast

Aquatic ecologist Dr Zeb Hogan goes in search of the paddlefish.

2010-09-19 • 44 min

11. Nile Giant

Aquatic ecologist Zeb Hogan and fellow scientists search for Nile perch.

2010-09-26 • 44 min