When Tony headed off to Bundoran for the weekend with friends and Christopher got into a car one day, neither knew that their lives - and the lives of their parents - were about to change forever. Both men suffered a life-changing brain injury when Tony fell off a 40-foot-cliff and Christopher's journey ended in a car accident. A brain injury turns lives upside down in an instant. It can have profound lifelong consequences, often more difficult because they are unseen, all in the head. Confidence, mood, behaviour, adaptability and every other aspect of character can be altered, impossible to explain, challenging to live with. As the years pass, a new self is revealed and a new reality is lived.