In April 2015, ultra runner Kilian Jornet is preparing for an expedition to Everest as part of his project, `Summits of My Life', together with alpinist Jordi Tosas and filmmaker Sébastien Montaz-Rosset. Two days before their departure, a 7.8 magnitude earthquake hits Nepal with devastating effect and Jordi's beloved Langtang Valley is all but eradicated. Putting their original objective to one side, the team travel to Nepal with the hope of offering help in the place that they hold in their hearts. Langtang is an ode to life, a tribute to hope and a search for new horizons.