The Wrecker

A criminal known as "The Wrecker" is orchestrating accidents on Britain's railways. One such accident occurs on the (fictional) United Coast Lines Railway, whose train is carrying Roger Doyle (Joseph Striker), who has retired from Cricket to work on the railway. Unbeknownst to them, Ambrose Barney (Carlyle Blackwell) is also the head of the Kyle Motor-Coach Company, whose buses are introduced on services.