In the Season Two opener Geoff and Steve return to their confidential "Alpha" site, but this time they have a new secret weapon. During a research and development visit to Orange County Choppers in New York, the help plan a monster meteorite hunting motorcycle, which is delivered to them by American Chopper star Paul Senior. With the help of their off-road bike, and experimental metal detectors, the guys follow the old Santa Fe trail and uncover a gemstone-laden monster space rock that dwarfs their previous Alpha finds.

In the first-ever overseas Meteorite Men episode Steve and Geoff revisit the very site where their hunting partnership began way back in 1997: the Imilac pallasite strewnfield high in Chile's Atacama Desert. They know meteorites are out there, but it's also winter at 11,000 feet in the driest desert on the planet. With new equipment and greater determination, the guys persevere through the harshest of conditions and — on the desolate plains of Vaca Muerta — make one of the most significant discoveries of their careers.

When hundreds of people witness a spectacular night time fireball over Salt Lake City, Steve and Geoff drop everything and race to Utah. After days of searching and communicating with their Doppler radar expert, Rob Matson, the guys are horrified to conclude that any surviving meteorites must have landed on the top secret Dugway Military Proving Ground — an area so clandestine it is nicknamed Area 52. Geoff and Steve must go all the way to the Pentagon in an attempt to gain access to the classified army facility.

The guys are on their way to the Northeast Astronomy Forum in New York for a personal appearance, when a large fireball is seen over rural Wisconsin. Geoff heads on to NEAF to hold down the fort, while Steve begins an all-night drive to the fall site. Later, Geoff takes their Orange County Chopper to meet Steve, and together they attempt to solve the mystery of the Mifflin meteorite fall. Locals turn out in droves to try and find their own space rocks, and the guys have the chance to train the next generation of meteorite hunters.

Geoff and Steve cross the Arctic Circle and head north on one of their most daring expeditions yet. With the help of a brilliant Swedish meteorite-hunting family the guys will attempt to uncover ancient space rocks that were transported by glaciers during the last Ice Age, and which have remained hidden and buried for 60,000 years. As the Arctic winter approaches they have only a few days to test new equipment, explore the mysterious forests of Lapland, and try to solve the enigmatic puzzle of the Muonionalusta strewnfield.

Steve and Geoff head "Downunder" on the most ambitious expedition of their careers. On the far side of the world, they cross the Nullarbor Plain—one of the most desolate locations on Earth—and reach the remote Mundrabilla strewnfield. The guys team up with Australian meteorite specialist Dr. Andy Tomkins and discover that their campsite is right in the middle of the fall zone. With limited time and an enormous area to cover, the guys use every trick they know to find examples of the strange and beautiful Mundrabilla iron.

In the Season Two finale Geoff and Steve journey to one of the most remarkable meteorite sites on the planet—the Henbury Crater field in central Australia. During the expedition, the region receives its heaviest rainfall in 35 years and the guys have to overcome flooded roads, stranded vehicles, and other hazards as they search for remnants of the beautiful Henbury iron meteorite that—4,600 years ago—blasted 15 craters out of the stark and captivating red-sand desert.