Three prisoners nearing the end of their jail sentences; 'Dodger' Lane, 'Jelly' Knight and 'Lennie the Dip', are visited by a With the assistance of Dodger's girlfriend Ethel and Lennie's mum, they smuggle themselves out in a prison van. The operation is almost foiled by the disciplinarian 'Sour' Crout, the new Chief Prison Officer who is replacing the easy-going retiring Jenkins. When they 'officially' leave prison, they manage to take the loot with them. All goes well, until the sack of diamonds is lost on a train. Stevens is recognised and arrested, but the others get away – minus the diamonds. However, their plans are disrupted by the arrival of a strict new Chief Prison Officer. The diamond heist goes like clockwork and the three break back into prison, hiding the proceeds in the Governor's office. The prison scenes were filmed at the West Cavalry Barracks at Two-Way Stretch, sometimes titled Nothing Barred, is a 1960 British comedy film, about a group of prisoners who plan to break out of jail, commit a robbery, and then break back into jail again, thus giving them the perfect alibi – that they were behind bars when the robbery occurred.