The final three couples play Do You Know Your Bae? before competing in the final, grueling three-stage Main Event challenge to battle for the $100,000 prize.
The final four teams face one of the most intense planking challenges ever conceived, with the first couple to drop going into the Rage Cage against the winners' choice.
Both partners have to pull their weight in the It Takes Two challenge, flu-like symptoms threaten a couple's chances, and a Rage Cage choice comes down to pride or strategy.
The house awaits an update about their two hospitalized competitors, and the Watered Down challenge exposes secret alliances.
A previously eliminated couple takes the spot of another after an unforeseen event, a swimming challenge proves to be a drag, and the Rage Cage elimination shocks everyone.
The couples compete in the When Push Comes to Shove challenge, and in order to quash some house drama, one couple volunteers for the Rage Cage.
The nine couples walk a tight rope in the Flying Blind challenge, and tensions soar as Kyle and Shay betray another couple and try to exploit an injury in the Rage Cage.
A new alliance forms, the couples test their strength, speed and gag reflexes in the Main Event challenge Sick & Tired, and the Rage Cage is a fight to the finish.
Robbie and Nicole clash over sharing common space, the couples compete in a free-for-all race up a sand dune, and Rage Cage selections provide an opportunity for revenge.
The 12 couples test their strength and swimming ability in the Tow Job challenge, alliances form in the house, and two couples face off in a Rage Cage tug-of-war elimination.
Fiercely competitive, athletic couples go head to head to test their endurance, agility, strength and teamwork for the title of Fittest Couple and a $100,000 grand prize.
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