In a temple in Kuala Lumpur, Shaolin monk Hu Qiong demonstrates his unbreakable body by smashing steel on his head, and spears in his throat. Bio-mechanic professor Dan Voss measures the forces at play to prove this is real. Dan watches Hu, as he attempts to push an electric drill into his own temple for a whole minute. Then, Daniel arrives in San Diego to witness Chad Netherland hold back a 500 bhp car. He calls in a sports physiologist to examine Chad’s technique, and to work out the real forces at play. Next, Daniel brings Dickinson Oppon from Ghana to South Africa to find out if the rumors of his superhuman control over his stomach are actually true. And finally, Daniel meets Byron Ferguson at an archery range where super-slo-mo images capture his accuracy in detail. Then eye-tracking technology is brought in to see if his eyes actually track the targets, or is it just luck?

Daniel goes to Wisconsin to meet Aaron Evans who is called "The Spring", who could be the greatest jumper in the world; Melchor Menor, the "Shins of Steel" who can break baseball bats in half with a single kick; Ito Kenichi from Japan who has the ability to sprint on all fours; and Mike Rutzen from Cape Town, South Africa who claims to be able to control sharks.

Daniel Browning Smith is in Vegas to meet Brian Jackson who blows up a hot water bottle until it explodes. Daniel takes Brian to a lung specialist to measure the power output and pressure of his lungs. Lu Deyuan's extraordinary, traffic-stopping superhuman ability is eye watering! Daniel meets Lu in a Kuala Lumpur dockyard where he's hanging steel bars from his eyelids. Lu says he feels no pain and doesn't suffer from any injuries. Could Anthony Kelly have the fastest reflexes in the world? Daniel meets him catching tennis balls at 80mph, and use a high speed camera to capture his technique. At a Detroit Dojo, Daniel meets Japanese Nunchuck Master Hiroki deadly in the martial art of nunchaku combat. Cindi Bir and Daniel test his ability by challenging his accuracy with a baseball pitching cannon.

In his quest to find people with real superpowers, Daniel Browning Smith meets some extraordinary individuals. When it comes to neck strength, John Evans is a legend. From cars to speedboats, nothing is too heavy for this six foot five, 24-inch neck ‘IRON MAN’…and he has 32 world records to prove it! The slightest slip, trip or nudge would mean a crushing death, as John’s arms wouldn’t be able to cope with the load! Then, Daniel meets Hiro in Seattle. Using slomo cameras, motion capture and impact dynamics, we find out if Hiro Suzuki’s yoyo skills push the limits of speed and dexterity. Hiro then enters a duel with a semi-automatic handgun, to see if he really has turned the yoyo into a weapon. Next, Daniel meets professor Kevin Warwick, the world's leading expert in Cybernetics, who became the worlds first Cyborg in a ground breaking set of scientific experiments, using himself as a guinea pig, surgically inserting technological implants connected to his central nervous system. And finally, even more powerful than Current Mohan, Slavisa Pajkic ‘Biba’ from Serbia claims to be able to take a hit of 20,000 volts ! He also says he can heat up water to 97 degrees Celsius in 1 minute and 37 seconds with his electric body, Is he a mutant, a freak of nature or a fraud?[3]

The search is on to find more real-life superhumans! First Daniel is in Canada to meet Pat Poviliatis, a man who boasts his hands are tough enough to withstand the deadly jaws of a steel-tooted cougar-trap. Sam Whittingham claims to have built the fastest human powered machine on the planet. His combination of design genius, and physical strength could make him the ultimate superhuman man with a brain like a hard drive. Brad Williams claims to have Super Autobiographical Memory, which means his brain has the power to remember and catalog almost everything that has ever happened to him, down to the tiniest details. And Annalisa Flanagan is rumored to have the loudest voice on earth, 122db. That’s enough to cause physical pain and permanent ear damage.

Rene Richter says he has the strongest teeth on earth, capable of bending coins. But we discover his strength lies in his jaw, which Rene says allows him to lift over 1000lbs. Kirby Roy has spent his life trying to become impervious to pain, using a controversial martial art called Combat Qi, he claims he is able to take strikes of limitless power to the most sensitive parts of the human anatomy. Daniel calls in some of the world's hardest hitters and kickers to put that to the test. Internet videos show college quarterback Alex Tanney performing mind-blowing trick throws. They look impossible, so Daniel wants Alex to prove he's for real. It's rumored Eric Scott is the best jet-pack pilot on earth, and he intends to prove it, by flying over a lake with no safety measures and only 30 seconds of fuel.

Daniel Browning Smith is in Vegas to meet Brian Jackson who blows up a hot water bottle until it explodes. Daniel takes Brian to a lung specialist to measure the power output and pressure of his lungs. Lu Deyuan’s extraordinary, traffic-stopping superhuman ability is eye watering! Daniel meets Lu in a Kuala Lumpur dockyard where he’s hanging steel bars from his eyelids. Lu says he feels no pain and doesn’t suffer from any injuries. Could Anthony Kelly have the fastest reflexes in the world? Daniel meets him catching tennis balls at 80mph, and use a high speed camera to capture his technique. At a Detroit Dojo, Daniel meets Japanese Nunchuck Master Hiroki deadly in the martial art of nunchaku combat. Cindi Bir and Daniel test his ability by challenging his accuracy with a baseball pitching cannon.

At high altitude, low oxygen causes hypoxia, altitude sickness and very quickly, death. But Ang Rita Sherpa claims he’s climbed Everest 10 times with no extra oxygen. Daniel takes him to a leading Altitude Research facility to witness the effects of altitude in a hyperbaric chamber. It’s said spider-silk is the strongest material on earth. And Randy Lewis says he has found a way to copy it–by breeding a herd of goats with spider DNA, creating a goat that can produce spider-silk in its milk? Stan wants Daniel to find out if this could be the first step to a real-life Spiderman. It’s rumored Tori Allen can climb Like Spiderman, but in fact, it seems she was brought up with monkeys and has actually mastered many of their climbing tricks. Stan Lee created Rocket Racer, a super-powered skateboarding nemesis for Spiderman. But Bob Burnquist is said to perform jumps on his skateboard that have made Stan’s comic books a reality.

First, Dean Sheldon claims to be immune to America’s deadliest scorpion venom. Daniel asks him to prove it by collecting 22 wild scorpions form the Arizona desert, and putting them in his mouth, all at once! Next is Kanzawa Sensei who claims to be able to put any animal into a trance using mind control. Daniel brings him to a California to prove his powers on an alpaca ranch, before facing the ultimate challenge. Will Kanzawa be able to use his powers to subdue a herd of America’s biggest land mammal, the Bison, enabling him to walk unharmed through their pen. Then it's George Aldrich, who is Nasa’s supersniffer, employed to scent test every object that goes into space, as he says “you can’t open a window on the space shuttle!” But how does his power compare to a sniffer dog? Daniel, and LAPD sniffer-dog trainer Lamb Lambert, set George a challenge that would even push a police dog to its limit, and are amazed by what they discover. And finally, Martin Strehl claims he has swum the entire length of the Amazon, 3000 miles, a feat no other human has achieved. Could Martin’s body somehow be immune to fatigue? Daniel challenges Martin to swim 15 miles in the ice-cold Colorado to find out how and if Martin really is built differently.

Stan sends Daniel to meet 38-year-old German speed fanatic Dirk Auer, who claims that with his incredible turbo powered rocket backpack and skates, he can reach amazing speeds. Guy Bavli claims he can move objects around a room using the power of his mind. We take him to a hardware store where he bends nails and cutlery off the shelves–and even appears to move objects without touching them. Daniel meets Nigel on a running track made of broken glass. A pain expert examines Nigel’s physiology… if he feels pain in the rest of his body, could his feet hold the key to switching off pain? Steve Woodmore claims to be able to talk at a “superhuman” speed of 637 Words per Minute! That’s 10.25 Words per second, four times faster than the average person.

First, Matthius Schlitte was born with Proteus syndrome, giving him one arm MUCH bigger than the other. Matthius has used this genetic difference as a gift, and through training, turned himself into a top arm wrestler, capable of beating men twice his size. But can he take on a superchargd robot, literally built to arm wrestle? Next, is he a Mad-scientist or a comic book superhero? Jean Yves Blondeau has designed a 32 wheel rollersuit that turns him into a human rollerskate with incredible speed and agility. Daniel wants to push the Rollerman to the max, pitting him against a 100mph go-kart in a final challenge that is “wheel-y, wheel-y exciting.” Next is Jack Dagger who claims to be the deadliest knife thrower on earth. He says he can hit any target, no matter how small or how fast it is moving. Will Daniel survive a William Tell-esque apple on the head stunt, and can Jack’s knife possibly match the power and accuracy of a shot-gun in a superhuman skeet shoot? And finally its rumoured Wolfgang Manicke and his posse have the power to destroy building with their bare hands. Daniel takes Wolganag to a scientist to analyse his strength, before the Human Wrecking Ball attempts to demolish a house, with nothing but their hand.

Alexander Levit was born blind. Living in Los Angeles, he claims to not only see shapes but colors and writing on screens in "Supersight." In the same area lives Mikhail Vasilyev, "Human Magnet" whose skin is adhesive and can hold non-magnetic objects, too. Stig Severinsen is "Dolphin Man" who can hold his breath 20 minutes. "The Human Toolbox" is Brad Byers of Vancouver, who can stick long objects into a channel in his head that begins at his nose.

Daniel meets Ho in Kuala Lumpur, where he demonstrates his incredible ability, smashing through the rock hard exterior of a coconut with his index finger. Dan Voss measures the force of his "finger of steel." And a load hammer replicates this force on a coconut. Next, Daniel meets Moses Langan in a busy Detroit shopping mall, where he has drawn a crowd with his spectacular ability. He appears to be able to turn his legs 180 degrees, and walk forwards! Orlando Duque demonstrates a breath-taking ability–diving from the same height as a twelve-story building and hitting the water at 55MPH without injury. Daniel and an Orthopaedic Surgeon Dirk Dolbere, investigate the forces Orlando can withstand. Joe Eigo says his jump defies gravity and insists he never uses trick photography, crash mats or safety wires.

Daniel Browning Smith, a man with Superhuman flexibility, travels to India to investigate a local legend that a man has developed immunity to electric current and can let it pass through his body, unharmed. Can anyone really be immune to electrocution? Daniel next meets Scott Flansburg, dubbed the "Human Calculator." Scott can complex arithmetic (even square and cube roots) all in his head, faster than anyone on earth. Does his brain work in an entirely new way? Totally blind from birth, Juan Ruiz apparently visualizes the world using the same form of sonar used by bats and dolphins called echolocation. Juan demonstrates his incredible ability to Daniel by navigating around a complex course using only the echoes of his tongue clicks to guide him. Dennis Rogers is only 5ft 6", but is pound for pound the strongest man in the world. He demonstrates his sheer strength bending hammers and horseshoes at will.

Daniel is in Vegas to meet Bob Munden the planet's fastest gunslinger, rumored to be faster than the blink of an eye, and with accuracy second to none. Using electromyography, and the fastest camera technology in the world, we investigate whether his speed goes beyond what science says is humanly possible. Timo Kaukonen is a World Sauna Champion and pushes his body to the limits. He has lasted for 16 minutes in temperatures hot enough to boil water. Daniel investigates to find out if he has a genetic difference that sets him apart. Warrior monk Shi Yan Ming shocked the world by moving to New York in 1992, marking the first time that a Shaolin monk has ever defected from China. By harnessing the power of Qi, or vital energy, he's taken Bruce Lee's infamous "one-inch punch" to a new level. "Professor Splash," (aka Darren Taylor) is a world champion high-diver...with a difference. Daniel tries to find out how a man can survive a 35 foot belly flop into just one foot of water.

Daniel meets Dean Karnazes. He's run 50 marathons in 50 days, and then ran 1300 miles back to the start. But how can Dean's body not suffer the exhaustion and fatigue faced by everyone else on earth? John Ferraro is rumored to have a skull that can withstand sledgehammers, bowling balls and even jackhammers. Daniel investigates to find out if he has a genetic difference that makes his skull superhumanly strong. Chris claims to have incredible powers like that of the Marvel comic-book character "Destiny"; he believes that his dreams are a window into the future. But will Chris' remarkable claims of premonitions stand up to the scrutiny of our host? Kenny Muhammad, aka "The Human Orchestra", is the most extraordinary human mimic on the planet. This wizard of sound possesses an astounding ability that enables him to simultaneously generate an entire orchestra of sounds from his mouth.

Daniel's incredible journey continues, as he investigates Tim Cridland, who claims to be able to switch off pain. He demonstrates his ability to go beyond normal pain thresholds by impaling himself with skewers, with little or no bleeding. Derek Paravicini is a blind autistic man with an incredible "superhuman" gift. Derek can remember and accurate re-play any song he ever hears. Does his ability offer the world an insight into the power of the human brain? Jyothi Rai is known as India's Spiderman--scaling walls at an unbelievable speed. Able to run up a six-story structure in just seconds, Jyothi has perfected his climbing technique by taking inspiration from monkeys. Last year in Milan, nine trucks weighing a total of over 30,000 lbs ran over Tom Owen in quick succession. How can his body survive such force? Daniel tests Tom's abs to find out if he has the hardest muscles on earth.

Daniel meets Patrick Musimu, who's able to dive to 656 feet on a single breath; Miroslaw Magola claims to harnesses the power of psychokinesis; Shaun Ellis has become a wolf, by living, sleeping, bathing and feeding with a deadly pack of wolves.

Isao Machii is a modern day samurai with unbelievable sword skills; Dr. Norman Gary can control an entire swarm of bees; Steve Santini performs incredible escapes requiring dexterity and body control; Rusty Haight, has had over a 1,000 car crashes.

Tim Friede has made himself a human guinea pig, allowing some of the world's deadliest snakes to bite him; Dan Meyers is the best sword swallower in the world; Garry Stretch Turner claims to have the World's stretchiest skin.

A man claims to be able to knock another to the ground without touching him; Salim Haini eats anything; Daniel pits himself against Ron White, U.S. Memory Champion; Greg Poe claims to be able to withstand forces of up to 12G's.