Melee is likely the most original type of close combat, but over time, armies have developed more effective close combat weapons. In this episode, experts test the physical and psychological impact of the three most important melee developments of our time. The Roman short sword (the gladius) and the medieval war hammer both cause severe damage, while bayonets rely on the deterrent effect - but an exoskeleton gives superpowers to the soldiers of the future.

Speed has become a decisive factor in warfare, and in this episode, a team of international experts use experiments to show the most significant weapons where speed made a difference. The chariot brings mobility to the battles of the ancient world, small handguns like Samuel Colt's revolver launch a new era of war and the weapon considered as the one symbol for asymmetric warfare is the sling. Will the future laser cannon change warfare with the speed of light?