This adventure source pack is intended to create an ongoing campaign for the High Adventure Cliffhanger: The Buck Rogers Adventure Game rules. The War for Freedom Continues! Deep within the Grand Canyon lies a secret Han airbase. Hidden here is an irresistible super-weapon that will bring the rebellion to its knees. The only defense is for a small band of heroes to infiltrate the base and foil the plot before final disaster strikes! Armed with the best available weapons, and allied with both native American freedom fighters and the mysterious Golden Dragon Society, the heroes must attempt to stop the unstoppable. This boxed campaign set expansion includes the following: A 32 page full-color World at War book, which expands the world giving loads of information on new technologies, new places, and the people of the 25th Century. A 48 page, full-color Campaigns vs. the Han book, which shows GM's how to construct campaigns, giving expanded tables for quick creation of adventures and gaming sessions. It also has a great adventure that pits the player characters against the Mongol Overlords. 2 full-color, poster-size maps put the 25th Century on your gaming table, including a large-scale playing map of a Han airship. Lots of stand-up counters and terrain tiles.