Determined to follow in the footsteps of his late father, eleven-year-old Peter is obsessed with becoming a policeman and he's not willing to allow the fact that he's just a little boy to stand in his way. His usual cases involve petty crimes but things go awry when he and his fellow child partner, Lisa, find themselves on the trail of two thieves after the mayor's office is robbed. With his mother and the town chief determined to put an end to his crime fighting, can he find the robbers before they make off with the loot?