The final honeymoon is over, and the newlyweds return to Denver to face a mountain of new challenges. Outside the city, the others gather for a relaxing retreat, and while some have high hopes of deepening their bond, others are on an outright collision course.

With decision day approaching fast, some couples begin to see things in a different light, while others begin to question their reality... and their marriage. Meanwhile, our newlyweds gain new insight when they gather their friends for a housewarming party. And a familiar face returns...with a surprising revelation.