A Canadian mountaineering team has been given permission to climb Mount Everest. But when one of their best climbers falls, it casts a dark shadow over the expedition. The mountain has claimed its first victim. Tensions within the group and criticism from the media and sponsors threaten the continuation of the project. The ascent of the world's tallest mountain in all its incalculable erraticity turns out to be the greatest physical and psychological exhaustion the team has ever faced. Only a few of them possess the perseverance and strength to survive this adventure.