Harry Hammond, pugilist, gets no inward corroboration when he hears that Rick, his identical twin, is dead- and his search takes him to Paris, behind the Iron Curtain to Prague, and into an Operation Q whereby he substitutes for Rick who is then free to smuggle out a secret microfilm. Harry too gets away, makes a strenuous run to the border, falls in love and and loses Anna, and finally reaches Paris and Rick- but is left for life a cripple and alone.... Some of the more obvious annals in undercover work- not helped by the really dreadful dialogue.