Apple Releases 'Silo' Season Three Trailer Ahead of Hit Show's Return

Apple's hit sci-fi series " Silo " is returning for a third season starting Friday, July 3, and a final trailer was released today . "Silo" follows the lives of 10,000 people living in an underground bunker to escape the seemingly toxic wasteland outside. The people are unaware of why the silo was built, and those who seek the truth face deadly consequences.