Jack Lambert and his troop of soldiers stumble across a giant sandcastle in the Port Talbot desert after they become separated from their convoy, and find themselves under attack from cheese-eating, wine-swilling 'eyeties'. Their ordeal is only marginally worse than that endured by the audience that must sit through Lambert's terrible acting as he fills his lads in on the meaning of 'umbitty-poo'. Luckily, the plot is just about strong enough to overcome his performance.