A old woman is murdered, and the only witness appears to be a large, grumpy Alsatian. The Chief enlists his help in a search for the murderer, and uncovers a story of con-jobs and blackmail suggesting that the old woman was far from being just a helpless victim

A local college is plagued by false bomb alerts, and the editor of the campus paper is convinced that leftist militants are responsible. However, when the fourth bomb proves to be real, and a member of the bomb squad is killed, the Chief begins to look in another direction.