Kelly visits the factories where three essentials of the modern United States infantry are made; Kevlar helmets, M-16 assault rifles and up-armored hummers.
Kelly visits the General Dynamics factory in Lima, Ohio to see 20 year old Abrhams tanks totally refurbished. Then he heads down to Fort Knox Kentucky to see the tankers trained to use them. At the Baretta factory in Accokeek, Maryland the employees show Kelly how the M9 side arm is made.
Kelly learns the builders of the Chinook helicopter in Philadelphia have as much history with the military as the helicopter itself. Then, after building a mini gun at a secret location, Kelly takes to the air in a Huey to test fire it. Finally, Kelley checks out the Andros robot used by the military and many police forces.