Large tank gun is put through its paces - demolishes and barn and fires in the air.
Introductory intertitle reads: "The League of Nations pushes on for perpetual peace. Meanwhile, our American cousins - possibly with the same object - push on with little things like this - "
A new American "Tank Gun" is demonstrated. It demolishes a barn by driving through it, clears a way through trees and undergrowth and fires into the air. A title states that it has a Centrifugal gun which fires 12,000 shots a minute without using explosives. Another title reads: "Its only a new 'Tank Gun' that Uncle Sam (with one eye on Mexico) believes a few thousand will ensure peace - perfect peace." C/U of parts of the gun and explanations in titles of how it works. Pellets are loaded into the firing mechanism - good C/Us. Gunshot damage to a wall is inspected.