A brash marine lieutenant with a history of active service overseas and heavy debts in the United States is assigned to a new post with his new company under the command of his former rival. The marine falls in love with his commanding officer's fiancée and romances her away from him. The day before their wedding, the fiancée calls it off after the marine is involved with an incident in Tijuana. The fiancée leaves for Central America during the Banana Wars to join her father, who is a diplomat, and the disgraced marine quits but re-enlists as a private. Assigned to a post in Central America, the marine discovers he must rescue his rival, who has been captured by the rebels plotting to overthrow the territorial governor, his former fiancée's father.
