Dimitri Bukharin is the fifth man to bear the title of Crimson Dynamo and the current leader of the Winter Guard. Following the failure of his predecessor Yuri Petrovich, Bukharin was given the suit of power armor and code name to fight at the behest of his superiors in the Russian military. Laynia Petrovna is Darkstar, a former member of a super team assembled to reclaim the elusive Black Widow. Darkstar defected to the United States where she has fought as part of the Black Widow's elite strike force. No matter what team he’s affiliated with, Ursa Major fights for the Russian people with honor and a love for his country.