One little girl stands in front of a sea of Christmas gifts that she is responsible for collecting. If you counted each one, the total comes to 10,323 toys and games. 10-year-old Sadie Keller is the lucky girl with all those gifts, but they're not for her. It all started three years ago when Sadie got a devastating diagnosis of leukemia. Sadie went through chemotherapy and through her ordeal she remained upbeat, vowing one day she would somehow give back.