Following World War II in peacetime Scotland, brigade headquarters replaces commanding officer Major Jock Sinclair, a boisterous battalion leader, with the strict, temperamental Lieutenant Colonel Basil Barrow. Resentful toward his replacement, Sinclair undermines Barrow's authority and damages his successor's reputation among the soldiers. Barrow faces an uphill battle in regaining the discipline and respect of his battalion.
When a law-abiding demolition expert is duped by a gang of criminals into helping them he is caught and jailed. When he is released he goes straight and then notices a leading citizen in his town is cheating his neighbours.
Sir Charles Hare, a young Irish baronet, gambles his all on one of his horses at Ascot. But the horse is 'pulled', and Sir Charles is forced to sell his Irish estate. His aunt, however, has some surprises in store for him.
Suave private investigator Norman Conquest intercepts a secret message and meets a beautiful but foreign blonde lady in room 605 of the Park Plaza hotel. But when Conquest wakes up in the room the next morning he is lying next to a dead body. With the mysterious blonde nowhere to be seen, Conquest soon becomes the police s number one suspect with Inspector Williams following his every move. In order to clear his name, Conquest enlists the help of Pixie Everard (Joy Shelton), but the going gets rough when he discovers that the murder is connected to a stash of stolen diamonds. As gun-happy gangs of communists and Nazi sympathizers turn up the heat, Conquest has to solve the murder whilst staying one step ahead of both the gangs and the police.
