'You're not a human being, you're an athlete,' 20-year-old Rita is told by one of her two merciless coaches as she prepares to represent Russia in rhythmic gymnastics at the Olympics. It is the most crucial year of her career and her last chance to achieve her ultimate dream, a gold medal. However gracefully Rita catches rings or rolls a ball across her shoulders, her coaches expect more from her, time and again. Described as the 'Black Swan' of sports documentaries, Over the Limit offers unprecedented access to the hidden world of elite gymnasts and the unrelentingly brutal training demanded by the Russian system.