The teams try to guess the weight of various creatures, and later have to identify items placed around their heads. The final challenge is a maze filled with mousetraps.

Weird donut fillings must be identified by the contestants, who later transfer creepy critters from one tank to another. The final challenge involves a creature-filled tub.

Contestants must guess the height of contortionists. Other challenges include transferring creatures from tank to tank; and navigating a surprise-filled maze.

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Contestants wear straitjackets for the first challenge, which forces them to use their tongues to identify objects. Later, they try to guess the weight of a dangerous animal; and have to figure out what's being dumped on them as they sit in a tub filled with water.

It’s double trouble this week when siblings enter the dungeon and compete in some of the grossest, scariest challenges on television. Siblings team up to tackle four tanks filled with unknowns, donuts and more.

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Players begin by identifying objects placed in tanks. The next round requires those who survive elimination to use their mouths to retrieve plastic rings from creepy boxes. The final challenge involves a booby-trapped maze.

Parents team up with their kids.

Memorable contestants from previous episodes return for another shot at the grand prize.

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This week's contestants will do anything for love in this special couples' edition of Total Blackout.

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Contestants confront their fears and phobias during challenges.

Instead of making contestants identify weird objects, they must count them! Whoever guesses farthest from the actual number of items will go home.

Season 2 ends with a celebrity edition of the game show, which features Aubrey O'Day, Bob Guiney, Erin Way and Neil Grayston trying to win money for their charities.