The Police Chief is tracking a band of four desperadoes, who vow revenge by blowing up his house. The desperadoes manage to kidnap one of the Chief's hapless constables - the boyfriend of the Chief's baby's nursemaid - by kidnapping the constable and the baby. They force the constable to plant the bomb while they hold the baby hostage. The constable is able to enter the house, and plant the note of the impending bomb. Mayhem ensues as the Chief, his wife, the nursemaid and the other constables search the house for the bomb, and try to find out where the baby is.