With emergency flares shooting off overhead, 12 Naked and Afraid all-stars are suddenly forced to grab what they can and plunge into the pitch-black Philippine Sea. A venomous jellyfish sting leaves a survivalist in agony and threatens their challenge.

Sparks fly at multiple camps. Fire engulfs Patrick's shelter and a screaming match erupts. Darrin and his partners clash over survival priorities. While Dani and Jamie battle injury and illness, Jarrell scores fish. Adam tries a new water strategy.