In the bitter winter of the 1980s, with heavy snow falling, young Lu Nian endured hardship while staying with relatives. Lei Ting, the decorated military dog her father had left behind, stayed by her side and protected her. When others coveted her father's keepsakes, she fled in the dead of night with the badly injured Lei Ting. Along the snowy road, Lei Ting did everything he could to protect his little master. After enduring countless dangers together, the girl and her dog were fortunate enough to be rescued by a kind veteran. Both were gravely wounded and in peril when Zhang Dajun, recently discharged from the army, returned. The old photograph Lu Nian treasured might help her find her father's former comrades...
