At some point of our lives we considered the life on other planets rather than earth. Every person has a different view and theories about their appearance, behaviour or abilities. But what if that life stood against us? Would we be able to win this extraordinary war? Do we even stand a chance? There's alot of unanswered questions which bother even the greatest planet minds. 'National Geographic – When Aliens Attack' is a documentary created in 2011 with intentions of answering these questions. One thing to remember is that these speculations are just theories created by greatest minds. None of us knows the truth and what's behind outer space life.