First broadcast 1st/2nd October 2008.
Following a court appearance for drunk driving, Leo is required to perform unpaid work as a punishment, assisting AJ, a community worker on a run-down, largely black-occupied housing estate in South London.
William Gaminara - Professor Leo Dalton
Emilia Fox - Dr. Nikki Alexander
Tom Ward - Dr. Harry Cunningham
Paul Bridle - Traffic Police Officer
Aml Ameen - AJ
Kerron Darby - Richard Ojama
Daniel Kaluuya - Errol Harris
Kedar Williams-Stirling - Levi Harris
Nicôle Lecky - Shana Block (as Nicole Lecky)
Paul Higgins - Det Sgt Nick Wallace
Jamie Sives - Ryan McBride
Marva Alexander - Shana's Mother
Jonny Coyne - Mr. Marigold (as Jonathan Coyne)
Charles Mnene - Keenan Barnes
Malachi Kirby - Tic-Toc
Jordan Watson - Dizzy
Chloe Hesar - Joli
Michael Ogunwale - Somali Gang
Tobi Bakare - Gang Member
Natasha Williams - Mrs. Harris
Elijah Baker - Charlie B
Zachary Scipio - Footballer
Connor Catchpole - Samuel
Dion Laughton - Curtis
Golda Rosheuvel - Celia Ojama
Karl Collins - Jerome Assante
Sidney Cole - Man Selling Gun
Chris Wilson - Police Officer
Natasha Williams - Mrs. Harris
Tito Fagbenle - Stabbed Boy
Marc Zammit - Dash
