Beverly Hills, 90210 (1990)

Season 6: Episode 15

Cindy surprises Brandon by coming to visit for Christmas. Her relationship with Jim is on the rocks, and she is unsure about returning to Hong Kong. Brandon feels devastated, as he fears that his family is falling apart. A special Christmas present from Jim squashes Cindy's doubts about his love, so she returns home. Colin begins using cocaine. Kelly is livid, as he had promised to give up the habit for good. Steve delivers Christmas presents to his boss's mistress and young niece. He gets fired when they receive the wrong gifts (the little girl gets a negligée), making the man's wife aware of his affair. Although someone else had switched the address labels, Rush blames Steve and lights into him. Steve angrily replies that Rush shouldn't worry about him, as they are not really father and son. When Steve meets Rush to apologize, his father makes a shocking revelation: he is Steve's biological father.