EP1 - Battle Gear. EP2 - Proving Grounds EP3 - Commercial Jets EP4 - Apollo 13 EP5 - Survival Technology EP6 - Chesapeake Bay Bridge and Tunnel EP7 - Garage Gadgets EP8 - Construction Machines EP9 - Hadrian's Wall EP10 - Monster Trucks. EP11 - Lighthouses EP12 - Computers EP13 - Engineering Disasters 3. EP14 - Chemical And Biological Weapons EP15 - International Airports II EP16 - Codes. EP17 - The M-16 EP18 - The Colosseum EP19 - The World Trade Center EP20 - Hardware Stores EP21 - Saloons EP22 - More Gadgets EP23 - Cattle Ranches EP24 - Cannons. EP25 - Nuclear Subs EP26 - Air Shows EP27 - West Point EP28 - Quarries. EP29 - Diamond Mines EP30 - The House EP31 - Work Clothes EP32 - Bunkers. EP33 - Cemeteries. EP34 - War Games EP35 - Drive-Thru EP36 - Times Square EP37 - Los Angeles EP38 - Glass EP39 - Firing Ranges EP40 - The St. Louis Arch