Nagano detective Yamato Kansuke survives an avalanche after being shot in the left eye during a mountain chase. Ten months later, while investigating at an observatory, his wounded eye flares with pain. That night, detective Kogoro Mouri receives a mysterious call linking him to Kansuke's case file. As Kogoro and Conan rush to the scene, gunshots echo through the blizzard - launching a chilling outdoor mystery where freezing winds conceal deadly truths.