Two headstrong MDs---privileged Dana Stowe and tough Lu Delgado---reluctantly join forces running a women's clinic at Philadelphia's Rittenhouse Hospital. Patricia Richardson scrubbed in for the departing Janine Turner in midseason 2002. Richardson's Dr. Andy Campbell is a retired Army colonel who's every bit as opinionated and self-assured as the headstrong Lu, making for an interesting matchup. Season 6 begins with Rick Schroder joining the cast as Lu's new partner, cocky physician Dylan West.