Tank leader Kalashnikov is drastically injured in battle in 1941. The accident leaves him paralyzed and not able to go back to the front line. While recovering in the medical facility he starts creating the preliminary illustrations of what will certainly turn into one of the globe's most famous tools. A self-taught innovator, Mikhail Kalashnikov, is only 29 when he establishes the now iconic assault riffle -- the AK-47.