Complicating the Sky Commanders' objective of stopping the criminal ambitions of the Raiders is the fact the new continent (collectively referred to in the series as "The High Frontier") is routinely beset by sporadic, unstable and highly dangerous weather conditions and environmental hazards such as landslides, earthquakes, cave-ins, whirlpools, etc. There is also the need for monthly shipments of fresh supplies, new advanced technology and weapon systems. Constant attack by the scheming and underhanded Raiders and the aforementioned environmental dangers make the Sky Commanders's mission only that much more dangerous.