Four married couples are introduced as they embark on an emotionally difficult journey to help repair their relationships. Viewers learn each of their love stories--how they met, how they fell in love, how their marriages took a turn for the worst and why they are willing to risk everything in order to save it.

The experimental married couples get to know each other while navigating their new living quarters and sleeping arrangements.

During the first week of the experiment, the couples explore each other's passions, personalities and patience.

The experimental married couples are faced with challenging situations that will force them to either open up or shut down emotionally.