With final vows fast approaching, some of the couples take time to visit their loved ones and interrogate their relationships. As three couples head to the ceremony, tensions rise as the most important decision of the experiment is about to be made - will they commit to a future together or walk away from their marriage for good?

All 20 participants of the experiment reunite for the final-ever dinner party, but weeks after the Vow Renewals have taken place, which couples will have survived the test?