One night in Mexico...nine months to become a family! In this California Nurses story, when Serena Dias visited Cozumel to celebrate becoming a nurse, spending a red-hot night with sexy stranger Tobias Renfro wasn't on her holiday itinerary. And a shocking reunion with surgeon Toby in her new, San Diego-based hospital definitely wasn't part of the plan for her first day! But there's a final surprise for Serena: she's expecting their baby...