From the introduction:
One thing that has puzzled intergalatic military strategists over the years are the activities of the little regarded race known as Earthlings. Despite being relatively intelligent, brave and most of all, warlike; why on Earth, haven't they exported their brand of terror to the wider Galaxy? Some analysist have speculated that they have just been too busy waging war on each other, others suggest that they haven't yet found the right autocratic dictator to subdue their world-wide masses. This despite the abundance of movies within their culture illustrating napalm death to any squat, green bulbous-eyed alien who just might happen to turn up for an intergalatic-holiday.
User summary:
This item includes Adventure #1 and Adventure #2; Adventure #3 of the trilogy is presented in The Hitch-Hiker's Guide to the Galaxy Roleplay Adventure #3: Always Finish with a Big Bang.