The experts, joined by new member of the team Dr. Viviana Coles, meet to match the four most compatible couples, but the monumental task proves to be more difficult than they thought.
People looking for the perfect partner are scientifically matched up and married on the spot.
The four couples have only two weeks to plan their weddings, celebrate their final days of being single, and reveal to their family and friends that they are getting married to a stranger.
The final two couples put their faith in the hands of the experts; all four couples celebrate their marriages with the help of family and friends at their wedding receptions; Keith finds out his new bride is a virgin.
After waking up next to someone they met less than 24 hours earlier, each spouse meets individually with their new stranger-in-laws before being whisked away for a honeymoon in Antigua.
The four married couples wake up in beautiful Antigua for the first day of their honeymoon; while some of the couples spend their time exploring the tropical island, others decide to explore each other.
Before returning back to Charlotte, the four couples enjoy their last few days of their honeymoon in Antigua; not everything is perfect in paradise, as the newlyweds discover who their stranger spouses really are.
Returning home to Charlotte, N.C., from their honeymoons in paradise, the four newlywed couples are faced with real-life issues, including moving in together.
The four couples spend time with their friends and family for the first time since their weddings; when one husband fails to come home all night, his wife must decide whether or not to take him back.
The four couples attempt to deepen their connection with trust and intimacy exercises provided by the experts; Dr. Pepper makes a visit to get to the bottom of why two of the husbands did not spend the night with their wives.
The couples reach a huge milestone in their marriages, their one-month anniversaries; with the experiment at the halfway point, this could be a day to remember or a day some of them will want to forget.
With only four weeks remaining, the experts sit down with each spouse to find out what it will take for the couples to say "yes" on decision day.
With less than three weeks until decision day, Dr. Viviana has the four couples examine their past to help them see if they have a future; visits to childhood homes bring up old memories that may have been best left behind.
With only one week until decision day, all four couples head up to the mountains for a romantic couples retreat.
With less than a week until decision day, the couples weigh the pros and cons of staying married or getting a divorce; when things finally start to look up for all four couples, a trust-shattering secret is revealed.
The eight-week experiment is over and decision day arrives; the couples must decide if they want to stay married or end it all and get a divorce.