Superman: The Man of Steel (1991-) #98

The Brainiac 13 contamination is spreading throughout the world, but meets with resistance from what's left of Superman's Fortress of Solitude in the Arctic. The surviving Kryptonian technology wants to take control of the Brainiac 13 virus in its own bid to conquer the Earth, and Superman and the human Eradicator are caught in the middle of the apocalyptic showdown. It will take the ultimate sacrifice to stop the war of the machines!