In the park, two human traffickers use a diversion tactic where one person lures the adult away. When one trafficker snatches the female owner's bag, the stray dog Heimei sees there is a thief, so she quickly rushes forward to help the female owner subdue the trafficker and snatch the bag back. Seeing that the adult has already been lured away, the other trafficker steals the child. When the female owner returns, she finds that the child is gone, leaving only the ball the child was playing with. At this moment, the stray dog Heimei indicates that she can smell the scent to help the female owner find the child, and thus a life-and-death rescue begins.