How science is increasing our chances. For many of us, getting cancer is our greatest fear. What's more, the chances are that at some point in our lives, it is a fear we will have to face. But things are changing. Scientists are at a crucial turning point in the treatment against cancer. It's been hailed as the beginning of a cancer revolution and comes in the form of personalised medicine. Horizon meets the researchers, doctors and patients winning the fight against cancer using new treatments and technologies at London's Royal Marsden Hospital and the Institute of Cancer Research.