Cameronian wins the Derby and the crowds cheer the Royal Family.
Full title reads: "The Derby 1931."
Introductory intertitle reads: "Epsom. 'The King's Birthday Derby'. Our beloved King, on his 66th Birthday, accompanied by the Queen and the Royal Family - cheered to the echo by an innumerable concourse see Mr J A Dewar's 'Cameronian' win historic race."
Good shots of crowds and cars arriving at the Epsom Downs race course. Racing tipster Prince Monolulu is seen in the middle of the crowds giving tips for the race. His feathered headdress waves in the wind. More shots of crowds outside the course. Travelling shots showing large number of cars arriving. Pan across crowds and bookmakers / bookies stalls. The race course is full of people. Shots of row of open top buses from where people will watch the race. More shots of crowds.
The Royal cars pull up outside the stand entrance. King George V, Queen Mary, Prince George (Duke of Kent) and his wife get out of the car and are greeted. Car pulls up and Prince Edward, Prince of Wales (later King Edward VIII, Duke of Windsor) gets out. He is surrounded by crowd of photographers.
High angle shot of the race course. Shot of royal party in royal box. Also with them now are Prince Albert, Duke of York (later King George VI) and Duchess of York (later Queen Elizabeth, the Queen Mother).
Horses move down course to start. The line up at the tape and they're off!
Various shots of horses racing in the Derby. Shots as they pass the finishing post.
The winning horse 'Cameronian' is led in.