Henrietta Young was born with the rarest blood type known, AB Negative. She found herself in high demand to give blood ever since she had been old enough to donate. When she decided to register with "Be the Match" Bone marrow institute, she had no idea that she would be a perfect match for Henry McDermont, a man suffering from myelodysplastic syndrome or MDS, who she had just learned was her biological father. Christmas was fast approaching,...