Kings of Pain

In a Bolivian jungle, Adam and Caveman Rob pursue the fabled Executioner Wasp, Warrior Wasp, and Goliath Bird-Eating Tarantula.

Adam and Caveman Rob head to South Africa to face the giant Bark Scorpion, the tiny Uroplectes Scorpion, and the highly venomous Lion Fish.

In Mexico, Adam and Caveman Rob tango with two torturous animals-including one that topped Justin Schmidt's pain scale.

In Africa, Adam and Caveman Rob search for the Nile Monitor Lizard and the Velvet Ant but are attacked by an even deadlier animal and are lucky to escape with their lives.

A dangerous underwater hunt for the potentially deadly Scorpion Fish in the Baja California ocean leads to a toxic sting that puts Adam in danger.

Adam and Caveman Rob journey to the Asian island of Bali and face off with the Fire Urchin that almost knocks out Caveman Rob, and the Rove Beetle.

The guys encounter two legendary creatures of the Amazon: the Bullet Ant and the flesh eating Piranha.

This special episode spotlights the most compelling and dangerous moments from Adam and Caveman Rob's journey to expand upon Justin Schmidt's original pain index.