S1, E5: Del persuades the local bus company to hand over one of their open-top buses in exchange for Rodney working as a Trainee Nocturnal Security Officer - part of their latest company, Trotter Watch. But the best is yet to come, as Del launches Trotters' Ethnic Tours: a scenic tour around Chingford and Croydon, taking in such ethnic sights as the Lee Valley Viaduct.