A self-employed lorry driver is determined to find the criminals responsible for hijacking him.

The cat and mouse game between government agents and a spy ring that has taken secret documents from a plane crash in Germany, not far from an US military research centre.

Two rival gangs are trying to fix horse races and a jockey is attacked and left for dead in a stage-managed car crash. An insurance investigator makes routine enquiries into the "accident" and one of the gang leaders feels threatened by this and takes counter measures.

When a corpse is found in the Thames, the only clue is that the dead man was killed by a karate or judo expert.

Aboard a BOAC plane departing an unnamed Iron Curtain country, a stowaway has convinced a flight attendant to conceal him so he can defect on arrival in London. However, a high-ranking secret police officer posing as a passenger informs her that the man she's protecting is not wanted for his politics; actually, he is a murderer.

A clique of girls in an English school wear a small yellow teddy bear on their uniform to signify that they have lost their virginity. Linda, the girls' leader, fears she may be pregnant from her window cleaner boyfriend, "Kinky", an aspiring pop singer. Desperate, and unable to confide in her parents, she must wrestle with her conscience and decide what course of action to take. Meanwhile, a concerned teacher learns the significance of the yellow teddy bears, and in trying to help the girls in question, puts her own career in jeopardy.

A man is confronted by a man in his house who declares that he is here to kill him, because he collaborated with the Nazis and caused the death of the intruder's fiancée.

A woman vanishes after exclaiming to her husband, "You'll never see me again!" He is then finds himself under suspicion.