Unchained Reaction: Missing Link Reveal
With only one day left, the teams scramble to finish their builds and a curveball from Adam and Jamie complicates things.
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Gold Rush: Wash Plant Death
Off his game with bad cold, Dustin Hurt accidentally drops a huge boulder on the wash plant that knocks it out of action.
Material Marvels: Shape-memory Alloys
Shape-memory alloys are used in everything from space exploration to dentistry -- but how could metal have a memory? Tune in as Dr. Ainissa G. Ramirez, Associate Professor of Mechanical Engineering & Materials Science at Yale, explains. www.seas.yale.edu
Sons of Guns: Hogzilla to Godzilla
Will and Kris meet up with Brandon and some friends to test out the hog gun. From an airboat, they spot a hog and put the muscled up, silenced, night stalking AR to use.
Sons of Guns: Ted Nugent Visit
Rock star and gun enthusiast Ted Nugent is in town for a concert so he decides drop in on Will and Red Jacket for some all-American gun and guitar fun.
Sons of Guns: Vince Clears Out
In the middle of a panic to get the Desert AR15 assault rifle completed, Will learns that Vince has cleared out his tools and disappeared.
Sons of Guns: Raining Fire
Watch as Dave Michaels, Will Hayden and the Red Jacket crew unleash the fury of the world's largest flame cannon.
Sons of Guns: Desert AR15 Debut
Before General Darden arrives for the big test, Will lets one of the nuclear facility security contractors try out the Desert AR15 assault rifle on a couple of targets.
Gold Rush: Car Crash
The crew tackles a treacherous road known for causing accidents. One of them has an accident of his own.
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Towing the Space Shuttle
How can a Toyota Tundra with a 10,000-pound towing capacity pull a 300,000 pound space shuttle? Scott Benjamin of CarStuff delves into the physics at play during the space shuttle's final journey to the California Science Center in Los Angeles.
Sons of Guns: Jesse James Lets Loose
After Will Hayden receives a surprise visit from Jesse James, he gives him a chance to shoot many guns from the Red Jacket collection in the range.
Sons of Guns: Master Welder
The Red Jacket crew works on building an aluminum Browning automatic rifle for Jesse James. During the build, Jesse James gives Flem a quick lesson in welding.
Sons of Guns: First Submachine Gun
A rare gun collector brings in a German Schmeisser MP 28, a variation of the first infantry submachine introduced at the end of World War I.
Bering Sea Gold: What Is Gold?
After The Dredge host Thom Beers brings in UC Santa Barbara scientist Doug Fischer to help explain exactly what gold is and where it originates.