When it comes to neck strength, John Evans is a legend. This six foot five, 24-inch neck ‘IRON MAN’ has 32 world records to prove it! 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 !