Then you make your way to the viewing platform and initiate the launch sequence. Once the rockets are in working order you have the duty/joy of telling jerk Haversam that he cannot accompany the ghouls on their journey. Anyway, you have to clear the facility of Nightkin, find atomic fuel, fix the rocket thrusters, and bring 3 Sugar Bombs, in order to get the rockets working.
The leader of the ghouls, Jason Bright, explains that he, Chris, and the ghouls have been planning for years to reach the 'sacred place.' Where that is, exactly, is debatable but the common assumption is the Moon. Eventually you meet up with the voice and it is that of Chris Haversam, a deluded human man living with ghouls. The plot begins when you reach the REPCONN Test Site and are greeted by a gravelly voice on the intercom.
I know not everyone loves this mission, particularly because it is a lot of 'go here, get that, come back, go again.' However, the pay-off to this quest is one of the most memorable in the entire game.