Giant mutant rabbits terrorize the southwest!!

Retired, wealthy sea Captain Jame McKay arrives in the vast expanse of the West to marry fiancée Pat Terrill. McKay is a man whose values and approach to life are a mystery to the ranchers and ranch foreman Steve Leech takes an immediate dislike to him. Pat is spoiled, selfish and controlled by her wealthy father, Major Henry Terrill. The Major is involved in a ruthless civil war, over watering rights for cattle, with a rough hewn clan led by Rufus Hannassey. The land in question is owned by Julie Maragon and both Terrill and Hannassey want it.

Brigadier General Frank D. Merrill leads the 3,000 American volunteers of his 5307th Composite Unit (Provisional), aka “Merrill’s Marauders”, behind Japanese lines across Burma to Myitkyina, pushing beyond their limits and fighting pitched battles at every strong-point.

A Union Cavalry outfit is sent behind confederate lines in strength to destroy a rail supply center. Along with them is sent a doctor who causes instant antipathy between him and the commander. The secret plan for the mission is overheard by a southern belle who must be taken along to assure her silence.

An authoritarian rancher, Barbara Stanwyck, who rules an Arizona county with her private posse of hired guns. When a new Marshall arrives to set things straight, the cattle queen finds herself falling, brutally for the avowedly non-violent lawman. Both have itchy-fingered brothers, a female gunman enters the picture, and things go desperately wrong.