A wave of motor scooter thefts hits the Bokutou district. The squad is also driven crazy by an outrageous woman, known as the Scooter Mama, who is obsessed with rushing off to every short term bargain sale in town, and breaking every traffic law along the way. And when Scooter Mama's scooter is stolen, Miyuki and Natsumi are in for the ride of their life as they attempt to track down the thieves.

Natsumi's bike breaks down and she runs into a mechanic who makes her fix it herself.

The station holds a party for Toukairin's last day.