The people Thom investigates in this episode claim to harness powers that it was thought existed only in the animal kingdom.

Thom meets a man who claims to be the fastest human on all fours and a man who uses a form of echo-location to see the world around him using sound.

Thom tracks down a man who has a right arm bigger than his left and sets another man the ultimate challenge to extinguish are using the water in his stomach.

Thom tracks down two more extraordinary humans. One balances on the edges of the world and one attempt to withstand the weight of a crushed car on his chest.

Thom meets Gabriel Dechichi who solves Rubik’s cubes whilst blindfolded, and Derek Paravacini who can memorise an entire piece of music after a single hearing.

Thom's latest quest introduces him to Annalisa, who has the worlds loudest shout and to Brad Byers, who has the ability to force metal objects up his nose.

On this leg of the search, Thom meets a man capable of squirting liquid from his tearducts and a man who claims to have heatproof hands.

Thom meets a man with an extreme resistance to the cold and meets someone who developed a form of martial art, to make him indestructible.

Thom meets a man who claims to have a skull capable of withstanding extreme forces and Serbian Biba Struger who claims to be immune to electrocution.

In Las Vegas Thom meets Rick, someone who can turn a playing card into a lethal weapon and Brian, who uses his unique lung power to blow up water bottles.