A megalomaniac dictator, in charge of a former colony, installs a nuclear bomb in its London Embassy. He threatens to set it off, unless a huge ransom is paid. The question for the government is whether he will set it off anyway?
King Arthur learns one of his knights is plotting to take over and marry his daughter. After the King's death, the Knight wishing to marry the princess is ordered by the great wizard Merlin to remove the sword from the scabbard and prove his right to the throne.
Steve, newly arrived in Trieste, saves Tina from being shot in her own night-club. She engages him as a bodyguard come detective, giving him a list of names and a map she has inherited. Steve discovers that her father was blackmailing a group of traitors and the map locates money hidden in Somaliland with evidence of their guilt. Having contacted all the names, they leave for Africa taking Nadia in place of her father who is killed. Michael tries to persuade her to join him against the others and escapes when she refuses. Later, in the caves he re-appears and in the ensuing fight falls over a cliff edge after the money. Steve throws the incriminating document after him. Melodrama involving a treasure hunt and an old blackmail system during the war, which is cleared up by a bodyguard.
Months before the out break of WWII, suspicion falls on a German ambassador when one of his envoys fails to return to Berlin. The arrival of two Gestapo agents searching for the missing man causes the ambassador and his family to rethink their Nazi allegiance but is it too late to escape from Hitler's evil grasp?
An ex-convict who's built a respectable post-prison life for himself as an engineer discovers that a past is a hard thing to shake. When old "friends" contact the former prisoner, it's not long before the gone-straight baddie finds himself being blackmailed into taking part in a major jewelry theft.
The Cat Gang is a group of precocious British kids. They have a habit of hanging around a grown-up customs official who wishes that they'd beat it. But the Gang comes in handy when a smuggling gang arrives on the scene.