The hero ninja Ryu Hayabusa put a stop to the evil doings of Tengu, but it was too late to stop him from triggering a massive worldwide collapse. A dense cloud covered the entire planet in a shroud of darkness and fear. DOATEC has gone astray, turning into the hunting grounds for power-hungry scam artists. This is when DOATEC's development department (a fortress for state-of-the-art military technology) witnesses the success of a genius. Following Project Alpha and Project Epsilon, the ever ambitious scientist, Dr. Victor Donovan completes the Omega Project, producing a new superhuman: Genra. The man, who was once leader of the Hajin Mon ninja of the Mugen Tenshin clan, is no longer human, but a force of singular and unprecedented capabilities known as Omega. To test the subject Omega's skills, DOATEC announced the third Dead or Alive World Combat Championship.