See how the competitors handle spending the night on the island!

Despite an aggravated ankle injury, Tim R. still completes the tree climb.

Despite winning the first two biomes, Tim couldn't finish this vine climb.

Not even heights can keep Jeremy from securing the lead. For now.

Reames struggles through the gorge despite his ankle pain.

Reames and Jeremy were neck to neck at the last stretch of the challenge!

This apocalypse prepper shows us what one of the best drinking water sources would be in an apocalypse scenario: toilet water! Watch to learn more!

Meet Luke Soderling, a plumber from Gilbert, Minnesota. After thyroid cancer threatened to take him away from his sons, Luke wants to be their ultimate role model and show them that if he can defeat cancer, he can defeat anything.

While struggling to catch a fish, Luke encounters alligators in the wetlands.

While attempting to fish in the mountains, Shon gets his net caught in a tree. He’ll have to go through freezing cold water to retrieve it.

Meet Shon Joyner, a former Marine from Indianapolis, Indiana. Shon wants to conquer The Wheel to show his former bullies that he can achieve greatness and that little guys can have the last laugh.

Needing wood to build a shelter, Josh learns the hard way that Mother Nature can fight back.

Meet Kat Dellinger, a registered nurse from Hickory, North Carolina. Kat wants to prove to her kids and other moms that even while keeping up with a household and maintaining a full-time career, they, too, can accomplish even bigger things in life.

Meet Adam Kimble, a marathon runner from Channahon, Illinois. Adam's childhood friend was diagnosed with Stage 4 brain cancer and has been given 6-16 months to live. Adam wants to show him he's not alone by fighting for his life along side him.

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After searching for over 3 hours, will Lindsay be able to find water in the bush plains?