On 4 August 2012 Jessica Ennis kicked off what some described as the greatest night in British sporting history. For her it was the end of a long, winding, and sometimes harrowing road.Unbelievable is a refreshingly candid account of her rise to fame in a highly charged world in which body image issues and drug abuses lurk. From the unique pressures facing her, to behind-the-scenes glimpses into the greatest show on earth, and a revealing account of her love-hate relationship with her long-term coach, Jessica reveals the truth behind the smiles for the first time. Unbelievable includes exclusive behind-the-scenes photos.