Wang Xiaoan and He Feng, once first loves, reunite years after a breakup due to a misunderstanding, both facing career challenges. Their reconnection sparks playful conflicts and a chance to rekindle their romance. As new relationships and complications unfold, their journey becomes one of second chances and self-discovery.

围绕老警察赵鹏程的 “走火” 心结，与青年行动组侦破连环大案、缉拿毒枭徐奎的故事展开。