Ghost Town Gunfight

 is a quest in Fallout: New Vegas. It involves the town of Goodsprings and a powder gang led by Joe Cobb. You can either save Goodsprings and destroy the Powder Gangers, or side with the Powder Gangers and destroy Goodsprings.

Quick walkthrough
In Goodsprings you are confronted by a group of Powder Gangers, they threaten to blow up the town, and you may either help them or help Goodsprings. If you choose to help the town, you may go around Goodsprings and ask for help from the locals, including getting dynamite from Easy Pete after passing an explosives check and receiving armor and weapons from Chet after passing a barter check, the rest of the town will then help you in ridding the town of the Gangers. Whoever you choose to help can then be controlled through the companion wheel.

Detailed walkthrough
The quest starts after overhearing Trudy arguing with Joe Cobb, and questioning her about the argument, or after Mitchell mentions an issue in the town of Goodsprings.