Dallas - Season 3 Episode 4 Lifting the Veil
Overview: It's wedding day at Southfork and Afton, Ray and Lucy 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.