The topic of stem cells has been a matter of great debate for our generation. No other subject straddles the line between life and death such as the question over the validity of the use of stem cells to improve the lives of those who seem beyond repair. Government officials and spiritual leaders have waged war on this scientific frontier as our great minds make even greater discoveries every day. But what are stem cells and are they the key to our future or a ticking time bomb waiting to detonate? Led by Stephen Hawking, a pioneer in the science world, this special takes us on a journey which delves into the subjects of stem cells both embryonic and adult, to explore what these wondrous and baffling mechanisms are capable of. Advancement in science is paramount; with the result of how to improve the lives of those who are living, all the while acknowledging the moral debate our species faces.