Renowned neurosurgeon, Jon Ritter, is on the verge of a medical breakthrough that will change the world. His ground-breaking surgical treatment-using transplanted non-human stem cells-is set to eradicate the scourge of Alzheimer's disease and give hope to millions. But, when the procedure is slated for testing, everything comes to an abrupt and terrifying halt. Ritter's colleague is gunned down and Ritter himself is threatened by a radical...