Past feuds and grudges comes back to haunt 28 eager Challenge competitors, all vying for their share of $500,000. Romance is in the air at the Challenge house, but so is revenge, as the players plot their next moves.
When three players earn power, their vendettas worry about becoming easy targets. Marie's romance with Kyle is threatened by her enemy, Cara Maria. TJ reveals a massive new twist that will explode the game.
A mysterious player leaves mean notes in the girls' room, causing havoc with their game as they all try to figure out the culprit. The bromance between Victor and Shane fractures into a newfound vendetta.
When the mysterious and offensive notes continue to circulate the Challenge house, it causes a stir amongst the female competitors and the culprit is finally revealed. When four Challenge legends return, the game is turned upside down.
When one player is blindsided, a surprising new vendetta is formed. Players compete in the high octane challenge, "Outside the Box" which will determine who is moving on to the Finals and who must battle for their shot at the big money.