Accused of helping an enemy submarine, a man escapes and joins a beautiful girl in trying to find the real traitors.

This short focuses on the story of Dr. Edward Jenner, who developed vaccination.

Third Time Lucky" was released in February 1931 and was the first film to star Bobby Howes in a leading role. Based on a play by Arnold Ridley, who also wrote "The Ghost Train", and later went on to star in "Dad's Army", "Third time lucky" tells the story of a timid parson (Howes) who steps in to protect his ward from blackmail at the hands of Garry Marsh and Gordon Harker.

A jewel thief and a con artist are rivals in the theft of a valuable diamond and gem necklace in Bombay and as the Japanese Army invades China.

After suffering a head injury during the London Blitz, theatre actor John Loder comes to believe himself to be the Brighton Strangler, the murderer he was playing onstage.

Drummond's wedding with Phyllis is interrupted when the inspector guarding their gifts is killed. He tries to trace the killers and uncovers the mystery of diamond counterfeiters.