Challenges surface as the couples are on their honeymoons. David tries to get Ashley to open up; Vanessa confronts a fear; and Samantha and Neil struggle to communicate.

The couples head home and divide up living expenses. Also: David is worried about Ashley's desire to spend a night apart; Samantha finds it difficult to move in with Neil; and Tres and Vanessa have a dispute about where they should live.

The three married couples first met at their wedding three weeks ago. Psychologist, Dr. Joseph Cilona, spends time with the couples helping them to communicate effectively together, open up with each other and constructively resolve their conflicts. Neil struggles with the adjustment of living with Samantha and her roommate; Vanessa struggles with fears of abandonment and Tres learns more about Vanessa from her mom; Ashley finally reveals her true feelings to David.

The couples get spiritual counsel to increase joy in their relationships. Also: Samantha and Neil work on communication; David tries to accept that Ashley is not physically attracted to him; and Tres and Vanessa talk about having a family.

Ashley wants time alone; David travels to Buffalo to get support from his brother and visit his father's grave; Tres Vanessa make an effort to be romantic; and Neil and Samantha move into a new home.

The experiment is almost over for the couples who married as strangers. Tres and Vanessa's romantic trip away takes an unexpected turn and is cut short. Time apart makes Samantha realize how much she misses Neil. David works hard to regain Ashley's trust and save his marriage after she discovered he texted another woman.

In the season finale, the couples decide if they want to remain married.