Young Jim takes over from his father, political boss Jim Gordon Sr. As ruthless and unfeeling as his dad, Young Jim blocks the efforts by a crusading newspaper to bring about reforms in the city's tenement district. But he comes to regret his intransigence when his father is ruined financially.

Actress Jane Carleson has three admirers: Henry Strong (a millionaire), Hamilton Ross (a chemist), and Murray Campbell (a district attorney). When Jane weds Campbell, Ross writes an anonymous letter to Campbell, warning him that Strong is after his wife.