An idea I had for an Alternate History. It's a typical Axis victory at WWII, though they don't manage to pull off conquering the world.
Hitler decides to put off conquering Russia until he's finished conquering western Europe. Japan's leaders decide to follow similar reasoning, and don't attack Pearl Harbor. Nazi Germany conquers western Europe, while Japan conquers most of Asia.
Eventually, the atomic bomb is developed by three superpowers (Germany, Russia, and America), leading to a three-way cold war instead of a two-way one.
How plausible does this sound?