The second challenge is "Rhythmic Gymnastics." Plus, on a 3-on-1 date, unexpected sparks fly at a rock concert and, as the pressure mounts, a shocking pre-dawn decision is made.

The third challenge puts the contestants up to their heads in "Hot Sludge Funday," an ice cream-themed obstacle course. Plus, contestants start coupling up romantically.

This week's challenge gets personal when contestants answer highly controversial questions about each other in pursuit of a rose. At the house, girls start fighting over the men.

Relationships get hot, but betrayal gets hotter. One-on-one dates include a jewel-splashed Pretty Woman-style tour of Los Angeles and a night roughing it at a remote campsite.

The contestants compete in a spelling bee. If the couple everyone wants to see gone wins the challenge, the stronger alliance will have no choice but to cut out one of its own.

With $250,000 close at hand and a shocking victory in a karaoke challenge, a conflicted contestant must choose between strategy and loyalty ... and possibly betray a best friend.

In a shocking finale, the final two couples - Sarah and Chris and Rachel and Nick - face their former housemates, who vote to decide which couple advances to the finals.