EP1 - Poison EP2 - Car Tech of the Future EP3 - The Arch EP4 - More Nature's Engineers EP5 - World's Biggest Machines 3 EP6 - Blackbird Stealth EP7 - The Butcher EP8 - George Washington Carver Tech EP9 - Firefighting!: Extreme Conditions EP10 - Desert Tech EP11 - Sub Zero EP12 - The Great Bridge: 8 Miles of Steel EP13 - Howard Hughes Tech EP14 - Edwards Air Force Base EP15 - Taxidermy EP16 - SWAT EP17 - Deadliest Weapons EP18 - The Doomsday Clock EP19 - The Basement EP20 - Paint EP21 - Mega Movers EP22 - Punishment EP23 - Bricks EP24 - Glue EP25 - F/A-22 Raptor EP26 - Civil War Tech EP27 - Machines of D-Day EP28 - John Hancock Center EP29 - The Cape Cod Canal EP30 - Secret Japanese Aircraft of World War II EP31 - Future Tech EP32 - Edison Tech EP33 - Secrets of Soviet Space Disasters EP34 - Mountain Roads EP35 - Route 66 EP36 - Cowboy Tech EP37 - Sewers EP38 - Challenger Tank EP39 - World's Biggest Machines 4 EP40 - Dredging EP41 - Lube Job EP42 - Secret Luftwaffe Aircraft of World War II EP43 - The World's Fastest EP44 - The B-2 Stealth Bomber EP45 - High Risk: Helicopter Lineman EP46 - Wiring America EP47 - Nature Tech: Lightning EP48 - HMS Victory EP49 - Engineering an Empire: Rome EP50 - Coffee EP51 - Sugar EP52 - Cereal: History in a Bowl EP53 - F-117 Nighthawk Stealth EP54 - German Small Arms of World War II EP55 - The Auto Store EP56 - Secret Allied Aircraft of World War II EP57 - Engineering Disasters 17 EP58 - Brewing EP59 - The Lumberyard EP60 - Da Vinci Tech EP61 - Custom Cars EP62 - More Hardware EP63 - Weird Weapons: The Allies EP64 - More Snack Food Tech EP65 - Walt Disney World EP66 - Nature Tech: Hurricanes EP70 - Private Collections