A renowned safecracker and his crew try to rob a bank by entering the vault through the sewer system.
A group of schoolchildren come upon an alien from Venus, and help him against a gang of criminals who are trying to kidnap him.
Claustrophobic train-set comedy-thriller (produced by H.G. Wells son) with an ace reporter coming up against crooks intent on stealing a gold shipment on the Scotland to London express. A scatterbrained scientist, a gun-toting dame with revenge on her mind and a pair of eccentric spinster crime novelists – who steal the film – round out the motley band of passengers who cross the path of our intrepid hero as he tries to get his big scoop.