Rookie policewoman Mai Kawai is ready to quit the force when the job turns out to not be what she expected, until the arrival of her new instructor Sergeant Fuji causes her to consider sticking around after all.
Detective Minamoto makes his presence known, now that the vacuum Sgt. Fuji left behind in Criminal Affairs makes him the division ace. Kawai and Fuji confront various societal issues having to do with the treatment of one's elders.
The chase is the thing! Or so Kawai discovers, when a police dog is brought in to help find a missing old man. Then the chasing continues when the police have traffic control duty during a local marathon.