as an outstanding graduate of the police academy, qian xiaotian (wang taoist) wanted to join the criminal police team and do something, but was assigned to the police dog team and became comrades-in-arms who lived with the police dog "duozi". but the arrogant dumplings seemed to be unobedient, and xiaotian also made mistakes repeatedly and was criticized by the team. li ke (played by tong yixuan) who is graduating from the same class
