Jakub ventures to South America on a quest to land the Amazon's largest freshwater fish.

Jakub travels into the vast Mongolian wilderness on the hunt for a magnificent fighting fish that few people have ever seen.

Jakub's on a quest to catch a giant Wels Catfish and reclaim a world record.

In the Congo, Jakub Vagner searches for a natural born killer. His target is the mighty Goliath Tiger Fish, and he's heading up one of the world's most powerful and dangerous rivers to catch this giant predator.

Jakub's heading up towards the Canadian sub-Arctic on a mission to prove it's still possible to catch a massive Northern Pike - even when their natural habitat is completely frozen over.

Jakub goes to Thailand on the hunt for a giant freshwater stingray. This is one of the biggest river fish on the planet and, with its deadly barb, is known as "the demon fish" to locals.