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.
While Challenge couple Brad and Britni plan on winning the game, players begin to plot their demise behind their backs. A player is caught stealing and generates a new vendetta.
Challenge legends continue to wreak havoc on the game. One player uses the power of the grenade to threaten the competition, creating a powerful vendetta in the process.
One player's humiliating performance may cost her the game when she gets shamefully stuck in a basket. Devin vows to wage war against his enemy, Bananas.
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.