John Smith (Alex Pettyfer) lives among people, but he is not one of us. Only nine representatives of the planet Lorian managed to survive the attack of the Mogadorians. They moved to a new place of residence and began to hide from the invaders.
John, along with his guardian, Henry (Timothy Olyphant), is constantly moving to cover his tracks. For a while, everything is relatively calm, but suddenly Smith begins to show marks on his body, which means that three of the aliens have already been killed. They can be eliminated only in a strictly defined order, and, unfortunately, John is the fourth on the list.
Trying to delay the moment of meeting with the Mogadorians, Henry again carries the ward. The town in Ohio is home to them. Here John meets Sarah (Dianna Agron), who became the love of his life. The hero reveals the supernatural forces and learns to control them.
Realizing that there is no point in hiding, John decides to join the enemy in an open battle, thereby giving a chance to survive to himself and others. Watch free movie action,adventure,sci-fi,2011 I Am Number Four (2011) online in FreeMovies4k.org.