2035年，一支精英士兵小队必须迎战企图掠夺地球能源宝藏的外星黑暗势力；外星人为了获取核心能源“仙藤”，已将全球各大超级都市夷为平地。上海能否成功守卫家园，甚至发起反击？
Set in the future, the city of Shanghai China battles to defend itself against an ongoing attack by an alien force that has attacked laid siege to numerous cities around the globe in it's quest to harvest a hidden energy only found on earth. Shanghai has become humanity's last hope. University student Jiang Yang follows female commander Lin Lan into the Shanghai Fortress, where he becomes a commander himself. As alien forces launch relentless attacks, Lin Lan is tasked with protecting the secret weapon capable of repelling the invaders; meanwhile, the "Grey Eagle" squad—comprising Jiang Yang and his close friends—must confront the alien aggressors. The final battle for humanity's survival ultimately unfolds in Shanghai...
