Twenty-two Australian legends join host, Brihony Dawson, to begin the fight for $200,000 and the title of Challenge Champion.

The Challengers must hang off semi-trucks while speeding down an airstrip at the "Truck It" challenge; a budding romance quickly turns sour, while a sneaky Challenger starts spreading rumors.

The game gets down and dirty as a scorned challenger looks for the ultimate revenge; after being paired by the Algorithm, two sworn enemies must find a way to work together.

The major alliances in the house begin to draw battle lines, while a steamy hookup between two challengers gets the rest of the players hot and bothered.

The knives are out as two dominant forces in the game battle to take control; a celebratory barbecue leaves several challengers burned.

Relationships in the house continue to break down under the intense stress of the game; the challengers are surprised with a grueling nighttime challenge; a player's injury puts their game in danger.