It's wedding day at Southfork and Afton (guest star Audrey Landers), Ray (guest star Steve Kanaly) and Lucy (guest star Charlene Tilton) return for the occasion. The only one missing is the groom, John Ross, who's skipped out to strike a deal with a family adversary. Meanwhile, Christopher returns from Mexico to witness Nicolas and Elena's relationship deepening, and to his surprise finds a new burgeoning romantic connection. As Pamela wonders what's keeping John Ross from the nuptials, Sue Ellen fears it's Emma and contemplates stopping the wedding.