Japan, 1582. The Sengoku period ravages the land with endless war. Kenjiro, a disillusioned ronin haunted by the fall of his master, spends his days drinking in the shadows of Kyoto. His apathy is shattered when Ayame, a deadly shinobi, arrives with the young heir of a massacred clan, hunted by the ruthless assassins of a rival warlord. Bound by a forgotten sense of honor, Kenjiro agrees to help escort the boy across the treacherous, snow-covered mountains to a hidden monastery. Hunted by elite killers and battling the merciless elements, they must forge an uneasy alliance to ensure the survival of the clan’s last hope.