The Challenge: USA

The reality titans are given $1,000 to start their individual "challenge accounts" and learn they must battle to grow their winnings; the competitors rappel down the side of a 22-story building in pairs while attempting to memorise a math equation.

The reality stars must gather letter pieces from a rotating buoy high in the sky and form as many words as possible; two "Love Island" exes must put their differences aside in order to win a challenge.

Loyalties are tested as a powerful duo starts to raise suspicions among alliances; the lack of chemistry between a new team of mismatched challengers puts their game in serious danger.

A trivia challenge while players hang over the ledge of a 30-story building.

The most difficult water-based challenge of the season leaves some players swimming to survive the game; whispers in the compound threaten to destroy a mighty alliance.

In the wake of a shocking blindside, players scramble for power; a pair of underdogs must choose between creating chaos and playing it safe.