While transporting a tank back to the barracks, the boys defy orders by stopping off at a service station for a bit of breakfast. Charlie is so worried that Sergeant Thomson will be angry that the boys decide to add to his anxiety by hiding the tank from him. This sparks off a chain of events that sees Gary having to call in all sorts of favours in order to stay one step ahead of Thomson, something that becomes increasingly difficult when Julie gets involved. (thetvdb.com)