Top Fuel Champion Tony Schumacher and US Navy Lieutenant Aaron Ochalek are both at the top of their respective games, commanding two of the most explosive and dangerous machines in the world.

Grave Digger driver Dennis Anderson and Supercross' Ryan Dungey.

Professional wing walker Jenny Forsythe and motorcycle stunt rider Cody Ives hope to execute flawless stunts.

The Baja 500 and the I-500 Snowmobile race.

Pit stops are necessary for the US Air Force and for NASCAR teams to stay in the fight.

The US Coast Guard and the Tahoe Avalanche Rescue teams.

The Edge 540 and the Patron Highcroft racing car compete in races.

The M1 Abrams tank and the submarine USS New Mexico.

Matt Kenseth and Tony Benshoof race.

Caterpillar coal mining truck and firefighting aircraft perform vital functions dealing with fire

Stryker troop carriers and armored trucks carrying millions of dollars from one bank to the next, share similar strategies to protect their cargo.

A new roller coaster compares to NASCAR driver Elliott Sadler's race car.

A giant crawler to transport a space shuttle; a heavy marine transport ship.