Jack and Carly are newlyweds anxious to prove to themselves and to the world that they can make their marriage work. She's running a fledgling catering business and has been married twice before--to Dante, a blue-collar would-be musician with whom she had a son, high-school freshman Will; and also to Sheldon, a rich businessman who is the father of her younger daughter, Sarah, 11. Jack is a schoolteacher who has an about-to-turn 16 year-old-daughter, Nicole, and is divorced from her mother, TV actress Stephanie. The ""blended"" family has been living in their new Manahattan apartment two weeks, and while Jack and Carly are wildly in love, the kids are getting testy. Nicole and Sarah are both chafing about having to share a room, and Will is infatuated with his beautiful stepsister, as evidenced by him ""accidentally"" walking in on her in the bathroom. Now Sheldon enters the picture saying he thinks it would be best if Sarah came to live with him. Carly asks for two weeks to see how things