Crime drama in which one detective must battle a corrupt system in order to bring a violent gangster to justice. An honest police captain faces seemingly insurmountable odds when he attempts to nail a mobster with powerful allies in high places. He engages in a deadly battle of wits with the mob, and an even greater fight against corruption from within the force.The big national crime syndicate has moved into town, partnering up with local crime boss Nick Scanlon. There are only two problems: First, Nick is the violent type, preferring to do things the old-fashioned way instead of using the syndicate's more genteel methods. The second problem is McQuigg, the only honest police captain on the force, and his loyal patrolman, Johnson. Together, they take on the violent Nick and try to foil the syndicate's plans to elect Welch, the crooked prosecutor running for a crooked judgeship.