Speed skater Elise Christie received death threats after crashing out at the Winter Olympics in Sochi, but now four years on she is Great Britain's best chance of a gold medal at the 2018 Games in South Korea. And as she completes her preparation for the biggest moment of her career, BBC Sport has followed the Scottish speed skater, gaining exclusive behind the scenes access. The people who know her best - her coaches, boyfriend, teammates and friends - describe how they helped pick up the pieces after the heartbreak of Sochi as Elise talks openly about the dark times she has experienced and how she hopes to finally complete her difficult journey with Olympic gold.