Yours and mine: Marriage is an experience that single mom Joanna Parsons doesn't plan to repeat, no matter what her eleven-year-old daughter Kristen thinks. Tanner Lund feels the same way. Like Joanna, he got divorced after a short, disastrous marriage. And like her, he's raising his eleven-year-old daughter Nicole alone. But Kristen and Nicole have other plans in mind--and it involves the best friends becoming sisters. Both Tanner and Joanna are...