Shifting Gears With Aaron Kaufman

Aaron Kaufman checks out a '71 International Scout to transform into a street legal Ultra 4 race car and compete in the legendary King of Hammers.

Aaron and his team rush to get the International Scout ready in time for King of the Hammers. But a series of problems, from redoing the fenders to leaks threaten...

Aaron and his crew barely reach King of the Hammers in California. Can their '71 International Scout beat the pros in the ultimate test of rock and desert racing?

Aaron takes on a challenge to build a Semi-Race Truck. He brings on experts in the field, Bob Ball and his son Justin, to bring the horsepower to the max.

The clock is ticking as Aaron and the team struggle to finish their truck for the Pikes Peak race. Do they have what it takes to get to the starting...

Aaron is at Pikes Peak International Raceway in Colorado Springs competing multiple races - but his truck is falling apart. Will he be able to finish the event?

Aaron tries building and racing a rally car. He and his builders try to navigate this fast-paced world, where winning is rare for novices and losing can be fatal.

Aaron pushes hard for the upcoming Olympus Rally. But, when he picks up the Subaru from getting a paint job, he faces his biggest setback yet.

The team arrives in Washington for the Olympus Rally Race, but it's a rocky road to the podium as failing equipment and bitter frustration cause problems.

Aaron plans to take a Model A Dragster and his Harley WLA to The Race of Gentlemen, a vintage beach drag race with a bunch of other hot rod enthusiasts.

Aaron and his builders rush to get the Model A Dragster and Harley WLA ready for the Race of Gentlemen. But problems with the dragster threaten his chances.

Aaron and his team arrive at The Race of Gentlemen with their Harley and Model A Dragster. But an accident and a serious injury cast a pall over the event.

Aaron Kaufman takes to the skies as he gets to pilot an F-16 fighter jet. Later, he explores a scrapyard where he learns to rip up old vehicles for fun...

Aaron explores military restoration as he tests a restored Sherman tank. He braves the dangers of coal mining and works on a steam train that's run for 150 years.

Aaron lays huge concrete mats on the Mississippi River, then plunges into the business of swamp logging. Finally, he explores the largest hydro dam in America.

Aaron is on an adventure to the Pacific Northwest. He works on a cargo ship, touring a massive engine and making sure the cargo is tied down.

Aaron explores the challenges of human survival. At NASA's headquarters, he learns about our future in space and tests cars made for the moon.

Aaron explores the service industry. He gets behind the wheel of an elite Green Beret training mission and feels the heat on a firefighter's training course.

Aaron works on a tramcar 8,000-ft above the desert. Then, he helps build a hovercraft in Indiana and heads to Texas to meet a woodworker-turned-car builder.