Casper and Fletcher are called to the scene of a disturbance at a truck stop cafe, but the owner refuses to speak out against those involved. Meanwhile, Perkins is tailing ex-con Max Little's son, Taylor, after Max informs him that the boy has been running errands for crook Barry Green. When Perkins witnesses the cafe owner handing over money to Taylor, he suspects that Green has been using Taylor as part of a protection racket. Meanwhile, Hemmingway and Harman deal with a group of youths who are bullying a homeless man, and when they find the ringleader spraying down the man, Hemmingway turns the washer on the yob - but despite positive feedback, she is suspended.