At the start of the "Civil War" storyline, the New Warriors performed a videotaped raid of a house containing the Cobalt Man, Speedfreek, Coldheart and Nitro, who had recently escaped from prison during the Ryker's Island Incident. The New Warriors attacked each villain, with Namorita (the Sub-Mariner's cousin) going after Nitro. Slamming him into a school bus, Namorita taunted Nitro who then quotes "Oh, baby, don't you even know? You're playing with the big boys." Nitro then explodes causing a massive explosion. This explosion killed Namorita, Night Thrasher, Microbe, and the supervillains he was with during the raid along with sixty children at the nearby elementary school and some 600 people in the surrounding neighborhood in Stamford, Connecticut where the fight took place.