No, this isn't a TV drama. It's a real, live rescue starring Sam, a 6-year-old golden retriever swept away by a river; Steve Soba, Sam's loving owner; and rescuer Joel Monroe. The action-packed scene unfolded at Arms Park on New Hampshire's Merrimack River. Soba momentarily let Sam off his leash, and the pup dashed down some steps and was swept away in the chilly, rushing waters. Thanks to steep walls surrounding the park, Sam was trapped. Onlookers encouraged Sam to keep dog-paddling until heroic firefighter Monroe jumped in after him. Rescuers transported Sam back to shore in a boat. "He's my best friend," says Soba. "They saved two lives tonight -- the dog's and mine