第 1 季 共 9 集
播出时间：2019年11月13日
第 1 集 Nightmare in a Box
播出时间：2019年11月13日
In a Bolivian jungle, Adam and Caveman Rob pursue the fabled Executioner Wasp, Warrior Wasp, and Goliath Bird-Eating Tarantula. One causes a medical emergency, and another delivers a nightmarish bite that leaves Adam's arm partially paralyzed.
第 2 集 Stinging Punishment
播出时间：2019年11月20日
Adam and Caveman Rob head to South Africa to face the giant Bark Scorpion, the tiny Uroplectes Scorpion, and the highly venomous Lion Fish. Big pain comes in small packages, and the effects of marine animals' toxins are truly the next level of pain.
第 3 集 World of Hurt
播出时间：2019年11月27日
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. The guys experience a brutal bite that makes them question their mission.
第 4 集 World of Hurt Part 2
播出时间：2019年12月4日
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.
第 5 集 Point of the Dead
播出时间：2019年12月11日
An underwater hunt for the possibly deadly scorpionfish in the Baja, ocean leads to a toxic sting that puts Adam in danger and matches the highest pain score to date, while the Toe biter results in the weirdest pain profile yet.
第 6 集 Fire Down Below
播出时间：2019年12月18日
A wildlife biologist and professional animal handler get bitten and stung by some of the most dangerous animals and vicious stinging insects in the world in an attempt to create a complete and comprehensive pain index that will ultimately help save lives.
第 7 集 Big Box of Pain
播出时间：2020年1月8日
The guys encounter two legendary creatures of the Amazon: the Bullet Ant and the Piranha. After hours of pain from the Bullet Ant, Caveman Rob dips his blood covered arm in a tank of Piranhas. What follows is a bloody and painful mess.
第 8 集 Execution Day
播出时间：2020年1月15日
Adam and Caveman Rob wrap up the season in Indonesia, with the two worst bites to date, from a Giant Asian Centipede and a 16-foot Reticulated Python. Vomiting, stitches and rivers of blood make them ask if they are able to continue their research.
第 9 集 Behind the Bites
播出时间：2020年1月16日
The crew finds out that the swamp may be manmade.
