Denver, Colorado was the first US city that was known to have been destroyed by nuclear explosion during the September attacks. As a result of the city's destruction, the main power transmission lines into the Jericho region were cut, causing the town to lose power. As part of the immediate relief effort after the attack, Jericho sent half of the town's firefighters to Denver. Some time later, a group of refugees from Denver made their way to Jericho where a large number ended up dying of radiation sickness. One of the notable refugee characters was Victor Miller, who previously worked with Robert Hawkins.