Frenchman Léon Poiccard (the redoubtable Francis L. Sullivan) leads a vigilante gang which includes Hugh Sinclair, who is super as a sort of "Scarlet Pimpernel" character ("Mansfield"), consummately slipping in and out of disguise, Griffith Jones ("Brodie") and Frank Lawton ("James Terry"). Their mission is to thwart a plan they have learned of by the Nazis to invade the UK. When these four men start to become the focus of the attentions of journalist "Ann Lodge" (Anna Lee) their efforts to thwart this plan become all the more perilous for them, and for her, as they must now evade the pursuing... read the rest.