After a gang pulls off a heist to acquire freshly minted dollars, American Treasury Agent Joe Dennison pursues their trail to London.

"[6] Kine Weekly said "The picture, originally made in 3-D, very nearly talks itself to a standstill during the early stages, but allows no grass to grow under its feet as it approaches its vivid pyrotechnic climax.

Flames lick the good and the bad lads, and few will resist cheering when the rescue party puts in an appearance and the villain is consumed in the inferno.

The leading characters display admirable composure in the most testing circumstances, and the stout portrayals of Dennis O’Keefe, Philip Friend and Margaret Sheridan as Joe, McClaren and Marlene, do much to mellow the rough stuff.

Mostly shown in its flat format, the film was jointly directed by its star and Montgomery Tully, who was something of a dab hand at atmosphere-free mysteries.