Waking up from a nap, all humanity is forced into a survival game at ten thousand meters in the air! While others draw paragliders and hot air balloons, Zhang Chen finds himself seated in a luxurious Gulfstream, and even draws the only legendary fusion engine! Adsorbing supplies, mounting machine guns, switching wings, he modifies his executive jet all the way into an airborne fortress. As the black fog approaches, corpse-bats swarm, and factions on floating islands eye them covetously, Zhang Chen and his companions venture into forbidden zones and seize resources, only to be dragged by a frost dragon into an even greater secret. Just how many unknown dangers to survivors are hidden in this sky?