Detectives investigate the Central Park murder of a young woman with a Marine Corps tattoo.

Buster becomes a fireman, but unfortunately not a particularly good one. He has a chance to prove himself, however, when three women are trapped in a burning building.

Mary is an impetuous romantic who marries British aristocrat Lord Philip Rexford on a whim. Their marriage is successful, though, and they grow closer over the years. Then, a trip to the Italian Riviera unexpectedly reunites Mary with her former beau, Tommie. After some vicious gossip makes Rexford distrust her, he begins work on a divorce. Mary must now choose between the man she has married and the man she once loved.

Molly Ashley, a child of the slums, is charged with being an accomplice to a shoplifter. Although innocent, she is convicted of shoplifting and sentenced to two years' imprisonment. Jim Tracy, the leader of a band of gangsters, rescues Molly. The following morning Detective Stone is assigned the task of locating and running down Jim Tracy's gang. In order to secure evidence against the gang, he disguises himself as one of the gangsters, runs into their place and pretends that the "cops" are after him. Tracy and the gang take him in. Molly falls in love with Stone and discovers his true identity. One of the crooks gets sore at Jim Tracy and betrays them to the police. Jim accuses Molly of betraying them. Stone resents his accusation.