Young Samantha Russell wants only to marry her fiance, Danny Autry, and move to Texas.  But once there, they find themselves caught up in the Texan settlers' struggle against the Mexican dictator, Santa Anna, and his tyrannical rule.  After tragedy strikes at the fall of the Alamo, Samantha vows to seek revenge.  General Houston's Little Spy follows Samantha as she embarks on a dangerous mission to assist General Sam Houston and his small fledgling army in their fight against Santa Anna's superior military force.