Drug traffickers smuggle heroin into the U.S. by hiding it in the ballast tanks of freighters. Mike sneaks aboard one of the vessels and battles a boatload of thugs.
When his daughter dies, an elderly rancher sends for his grandchild, whom he plans to make his heir. Gene and Pat go to meet the boy's stage, but find some unexpected trouble.
Gene and Pat help a reformed outlaw and his daughter when a rich and unscrupulous man tries to blackmail them.
When Pat inherits a stage line from a distant relative, he and Gene become involved in a long-standing feud along with Pat's relatives.
Annie befriends a Chinese laundryman whose difficulties are compounded when he is framed for murder by a man anxious to acquire his property.
