"I don't know what this is but I'm sure it'll make a nice firework show. " — Postal Dude upon seeing the warhead.
The Thermo-nuclear warhead is an item in Apocalypse Weekend. Vince Desi informs Postal Dude that Mike J has been infected with Mad-Cow disease, so Vince needs Postal Dude to help with the marketing, by doing something to prompt the media to say the competition is "toasted". Postal Dude comes with the conclusion that people love fireworks and that a "nice explosion" would actually make the competition toasted.
Postal Dude believed that the Terrorists had a weapon at the Terrorist Training Camp. However, when he arrived to the underground part of the camp, he realized they had no weapons at all. In that very same time, the National Guard arrives and arrests the terrorists and Postal Dude and takes them all to the Military Base. The Thermo-nuclear warhead is found in the 4th part of the base on Sunday. Upon entering the ordenance silo, he will come across the warhead and notes that it could be used to destroy the rival video game company, Bullfish Interactive. He takes it, and proceeds to escape the base and head to Bullfish Interactive's headquarters. At the headquarters, Dude places the warhead down in Phraud Hogslop's office, then goes to rescue Champ from the Dog Pound.
The warhead goes off while Postal Dude and Champ are driving away from Paradise, and because of it's 100 Kiloton yield, not only is Bullfish Interactive's HQ destroyed, but all of Lower Paradise as well.
- Postal Dude can lift and store/carry the Thermo-nuclear warhead despite its weight and size.
- The item cannot be dropped from the inventory.