out and his personal war began. a 55-year-old nautical engineer says he spent the past ten years serving on the lady anastasia sailing the mediterranean. translator: we had a crew of nine people, including a chef and a waiter. reporter: he says the yacht s current owner and only user is alexander mahiv, a sanctioned putin-connected oligarch and the ceo of a major russian state-run company that rakes in tens of billions of dollars sending munitions, everything from weapons to ammo to aircraft. the yacht engineer went from cruising in oligarch luxury to a bunker in ukraine. our interview just began, stopped by an alert of an incoming russian attack. o okay, sorry. see you next time. bye-bye. reporter: his life changed in late february when the yacht was docked in spain and russia