Naturalist Steve Backshall is on the search for animals for his Deadly 60 list. In this spine-chilling episode, he abseils into the darkness of the incredible Gomantong cave system. Here, he encounters thousands of cockroaches and one of the scariest creepy-crawlies to go on the Deadly 60 list, the scutigera centipede. Thousands of wrinkle-lipped bats call this cave their home. In order to show how amazing they are, Steve hangs like a bat from the cave ceiling. It is a truly awesome sight as the bats leave the cave in their thousands to hunt for bugs in the night sky. Steve also scours the waterways of the Borneo jungle for a reticulated python, and the team get munched on by tiger leeches. Not an episode for the faint-hearted.