At the end of the summer of 2014, before the onset of the cold Yakutian autumn, four-year-old Karina goes missing in a village on the outskirts of the forest. Her family, volunteers, and rescuers are frantically searching hundreds of kilometers of taiga. Meanwhile, the child wanders through the taiga, barefoot and without warm clothes, accompanied by her dog, surrounded by blood-sucking insects and dangerous predators.