Members of the 87th Precinct search for a cop killer who has already murdered two of their own.

Horse trainer Steve Tapley is caught between the feuding Martingale and Shattuck families. He sides with young Nancy Martingale and her grandfather Ezra, and the feud is to be resolved by a horse race between the favorites of each family. Unfortunately, the Martingale's horse, Greyboy, only runs well in mud. And it hasn't rained in a long time.

这是一部惊险的二战题材的影片，一名海军少尉被派到海军蛙人部队任职。他严格的态度赢得了士兵们的友谊，部下跟着他出生入死，即将执行一项危险的任务——攻击日军潜艇基地……