Tyr's Hand

The Odin sets out on what's meant to be an ordinary patrol, but it collides with a black star and ends up in orbit of Earth in World War Three. Not only was the ship displaced but so were seemingly random members of the crew, with some on Earth and others...no one knew. By the time the crew that could be rescued had been rescued and the ship back to its own time, over a hundred members of crew were dead...and the universe didn't look anything like the one they left.