Tensions boil over as a relationship continues to create friction in the house. The contestants must prove they have brains and brawn as the latest challenge puts them to the test. And, a shocking upset at the Pit sends a powerful team packing.

The final four teams plot to take out whoever stands in their way of making it to the end. At the challenge, the contestants put it all on the line as they overcome all obstacles that stand in their way of a spot in the finale.

It's the day they've all been waiting as the final three teams battle in an epic race of strength, intelligence and endurance. Only one team will prevail and claim the $100,000 prize.