Laika is a Cold Dog—a stray pup fighting to survive on the freezing streets of Moscow. But everything changes the night she is plucked from her alley and brought to a top-secret facility to become a starflyer, a dog trained to travel into space. Terrified and distrustful, Laika wants nothing more than to escape. Then she meets Nina. Nina is a Cold Girl—lonely, bullied at school, and full of questions about her father's secretive work in the Soviet Space Program. When Nina discovers Laika in her father's laboratory, the two outcasts form an unbreakable bond that slowly warms the chill in both of their hearts. But the Space Race between the United States and the Soviet Union is growing fiercer by the day. As launch time draws near, Laika and Nina uncover shocking secrets and hard truths that will put their friendship—and Laika's life—to the ultimate test. Based on an incredible true story, this harrowing and propulsive tale will leave you breathless as two unlikely friends find the courage to chase their dreams all the way to the stars.