Dead or Alive 5 is set two years after the events of Dead or Alive 4 and the destruction of the DOATEC corporation 's TriTower headquarters. Helena Douglas has undertaken the task of rebuilding DOATEC but wants to use its technology for peaceful ends. Helena dissolved DOATEC 's Biotechnology Division, stopped the Military Division 's biological weapons projects Alpha, Epsilon and Omega, fired all members of Donovan 's faction, and announced that she intends to hold the Dead or Alive Tournament 5 (DOA5), hosted by Zack, "to show the world the principles and philosophies upholding the new DOATEC. ''
who hosted the 5th dead or alive tournament
Zack