Olympic athletes have, by definition, overcome overwhelming odds. But even among such a class of people, the US fencer Keeth Smart’s story stands out as extraordinary. He was the worst member of his high-school fencing club – which he joined only thanks to his talented sister (and future Olympian) Erinn – yet he ended up with a silver medal at the 2008 Beijing Olympics, just four months after he was diagnosed with leukaemia. Combining family home videos, a voiceover from Smart and graphic-novel-style animations, Stay Close shows how a black kid from Brooklyn dealt with his challenges to succeed in a sport dominated by affluent white athletes – and became the first US fencer to top the world’s rankings.