GV. Lord Montagu driving towards camera in a 1902 De Dion Bouton and he swerves off the road. SCU. Lord Montagu gets out of car and starts to run. SV. Lord Montagu running towards camera and stops at a post with a light on top. CU. Lord Montagu presses the alarm button and the light on top starts flashing 'This button, when pressed, automatically informs police and ambulance that there has been an accident'. CU. The button. Pan up to the flashing light. CU. The flashing light. SV. From left to right, the inventors Mr Derek Warren and Mr Ronald Atkinson talking to Lord Montagu. CU. Pan, three men talking. GV. Pan showing another warning system which would go down the middle of the motorway. It has a trip wire which automatically starts horns and lights. Camera pans to the horns and lights, mounting. GV. Lord Montagu drives his De Dion into the trip wire. The horns start and the lights start flashing. CU. Flashing lights. SV. Lord Montagu in the De Dion. Camera pans to close up shot of flashing lights.