Suffering from amnesia, a U.S. Special Forces soldier known only as ‘Bo’ (Lee Pace) wakes up in a prison cell in Nairobi with no idea how he got there or indeed who he is. He soon discovers that there has been a cataclysmic invasion of Earth by an unknown alien threat and mankind stands on the brink of total annihilation. However, a resistance is mounting and it isn’t long before Bo joins them in an all or nothing last stand to take the planet back!