Allied spies and Nazi Agents insinuate themselves at a Scottish cottage (converted to a wartime hospital) with interests on an inventor's nearly perfected bomb sight.
Great Britain, 1944, during World War II. Relentlessly pursued by several MI5 agents, Henry Faber the Needle, a ruthless German spy in possession of vital information about D-Day, takes refuge on Storm Island, an inhospitable, sparsely inhabited island off the coast of northern Scotland.
The obsessive scientist Dr. Miller is working on a matter-transmitter invention called the Paratron; a conspiratorial team of spies and no-goods pursue him to Alaska, trying to steal the device.
An American ballistics expert in Turkey finds himself targeted by Nazi agents. Safe passage home by ship is arranged for him, but he soon discovers that his pursuers are also on board.
Celebrated elderly Austrian poet opposes nazism, while his daughter admires and falls in love with leading nazi activist, who eventually becomes concentration camp commander with his father-in-law as prisoner.
In Madrid, Spain, at the end of the 19th century, the young and reckless Basilio seems to be the only person who perceives the spectral presence of Professor Robinsón de Mantua, who begs him to take care of his niece Inés, because she is in grave danger.
Before his death, Mansour Pasha writes over his wealth to his two sons Omar and Othman; as the latter drowns, his wife gets a boy and claims he is Othman's son to ensure her share in the inheritance.
Charles Starrett stars in the lightning-paced Columbia western Riding West. Somebody is planning to sabotage the new Pony Express mail service, and hard-ridin' Steve Jordan (Charles Starrett) aims to find out who.
A manufacturer and an impresario (who has promised some young people he will stage their show) are twin brothers causes a lot of confusion when the manufacturer is mistaken for his no-money brother.
Jimmy Bancroft, a fighter pilot, who is recovering from injuries sustained during the Battle of Britain, and Hazel Court, a nurse, come across a pair of rare birds nestling in a field.
With a plot line mostly lifted from 1941's "White Eagle", Columbia's 24th serial (following "The Desert Hawk-1944" and ahead of 1945's "Brenda Starr, Reporter"), "Black Arrow" finds carpet-baggers Jake Jackson and Buck Sherman arriving in Blue Mesa in search of gold.