In 2641, an elite team of commandos called the "Unified Military Special Mobile Task Force K-X", also known as the "Contra Hard Corps", has been assembled to combat the rapid spread of crime and illegal activities following the war. When an unknown hacker infiltrates the city's security system and reprograms a group of unmanned robots to cause havoc, the Hard Corps are deployed to handle the situation. Members include male soldier Ray Poward, female soldier Sheena Etranzi, Brad Fang, a wolf-like humanoid with two cybernetic arms and Browny, a small robot capable of hovering with his bit broken rocket pack.