 New York City fireman Bill O Connell (Bob Livingston) is assigned to the Arson Sqaud with the job of apprehending the for-profit gang of arsonists who are spreading terror and loss of property, including human life. When his friend and batallion chief, J.P. Riley (Emory Parnell), is killed fighting one of the set fires, Bill declines the offered promotion to Riley s post in order to keep working against the arson gang. Riley s young son Tommy (Jackie Moran) is left in charge of Bill and his fireman pal Tom Jones (Warren Hymer). Just as Bill is about to close the net on the gang leaders, Joan Lawrence (Rosalind Keith), a young newspaper woman runs a story that puts Bill, whom she loves, on the spot (presumably) with the fire commissioner.