A scatterbrained circus lady must cover for her sour schoolmistress sister.

Revolution breaks out in a small European kingdom, and a young princess is forced to flee for her life. She heads for the neighboring country, which just happens to be ruled by the king she is betrothed to. Unfortunately, the new revolutionary government won't let citizens leave, which she actually doesn't mind all that much because she's not particularly jazzed about marrying the elderly king. He sends a young naval officer to bring her across the border, but in order to do so they are forced into a marriage of convenience. Complications ensue.

Max Miller plays a boxer's manager who fails to get fights for his simple-minded boxer. The manager sets up a scene in an American nightclub whereby his fighter gets the chance to knock down the reigning champion. The ruse fails to get the fighter a job but a female acquaintance of the champion takes a fancy to his opponent. The plot develops aboard a ship back to England.

It is pouring with rain at one minute to midnight on Friday the thirteenth, and the driver of a London bus is peering through his blurred windscreen as his vehicle sails down an empty road. Suddenly, lightning strikes, and a vast crane above topples into the path of the oncoming bus... Then Big Ben begins to wind backwards. Time recedes. And we discover the lives of all the passengers and the events that brought them to that late-night bus journey, from the con-man with a hundred-pound cheque to the businessman's distraught and elderly wife. Time flows on, inevitably, to the crash -- and past it, as some live and some die.