One of these race against time thrillers to defuse a time bomb in a populated area. The modest suspense film packs enough tension to make it watchable and Glenn Ford, as always, delivers a fine performance. Director Ted Tetzlaff ("Johnny Allegro"/"The Window"/"The White Tower") efficiently directs, while padding the story with a dull domestic subplot. Kem Bennett writes the screenplay from his novel Death at Attention.

At the Birmingham station, a saboteur (Victor Maddern) places a time bomb on a Brit freight train carrying explosives north to Portsmouth, to a Naval shipyard. When Constable Baron (John Horsley) notices a suspicious character in the train yard, at night, he stops him and a scuffle occurs with the saboteur escaping. In the police station, the saboteur's satchel was recovered that he left behind when fleeing. It's searched and contains wires and a box of detonators. The chief constable of Birmingham (Harrold Warrender) and a top security official, Jim Warrilow (Maurice Denham), are notified, as Jim contacts Major Peter Lyncort (Glenn Ford), a former member of the Royal Canadian Engineers' bomb disposal unit who now lives and works in private industry in Birmingham, to see if he can locate if a bomb has been placed on the train and then to dismantle it. Meanwhile the train has been diverted to the less populated town of Felsworth, where the citizens are evacuated. While Peter works all night searching for the bomb, the cops go on a manhunt for the saboteur...