NIGHTWING VS WINTER SOLDIER
Nightwing is a fictional superhero appearing in American comic books published by DC Comics. The character has appeared in various incarnations, with the Nightwing persona most prominently being adopted by Batman’s partner Dick Grayson when he outgrows his identity as Batman’s sidekick Robin.
The Winter Soldier is kept in a cryogenic stasis when not on missions, and as a result has aged only a few years to a young adult since the closing days of World War II.
Bucky, captain america’s sidekick, did not die in World War II. It was revealed that after the plane exploded, General Vasily Karpov and the crew of a Russian patrol submarine found Bucky’s cold-preserved body. Bucky was revived in Moscow, but suffered brain damage with amnesia as a result of the explosion. Scientists attached a bionic arm, periodically upgrading it as technology improved.
Programmed to be a Soviet assassin for Department X – under the code name the Winter Soldier (Russian: Зимний Солдат, translit. Zimnij Soldát), he is sent on covert wetwork missions and becomes increasingly ruthless and efficient as he kills in the name of the state.