Season 15

The Rookies and Veterans reunite for an occasionally contentious look back at one team's victory by default, Eric's collapse, alliances born out of hookups and more.

Frank goes back on his word during Gauntlet nominations, the final challenge tests the teams' endurance and ability to work together, and chaos ensues when Eric has a medical emergency.

Katie conspires with the Rookies, the challengers endure freezing temperatures in the Chill Out challenge, and Frank causes friction among the Veterans.

Coral confronts Evan about his plan to eliminate female players, one contestant calls it quits, and the teams brave a head-spinning race in the Mexican Blanket challenge.

Tori and Brad make a connection in the house, Danny finds himself at odds with his team, and the I Dig You challenge buries the players alive.

Evan and CT scheme to get rid of female teammates, a rivalry comes to a head in The Gauntlet, and Paula and Derek explore their relationship.

The Rookies rejoice over an unexpected replacement player, Melinda suffers a concussion during the Push It challenge, and the Man Overboard challenge triggers Casey's fear of heights.

Evelyn pursues romantic feelings for Brooke, the challengers go blindfolded for the Blind Man's Maze, and a player feels betrayed after being nominated for The Gauntlet.

Nehemiah confronts Beth about her comments suggesting they hooked up, the Rookies and Veterans face off in two challenges, and two women battle in the first female elimination.

The challengers are divided into teams of Veterans and Rookies before competing in a high-stakes tug-of-war battle and getting dirty in the Pinata Pit.

A look back on the 25 most unforgettable moments in the history of The Challenge up until this point.