One thing we can figure out from the trailer is that the Transformers have gone into hiding around Chicago after the events of the last film.
When Mark Wahlberg's character finds and restores Optimus, the government hunts them down and a lot of things go boom.
With an entirely new cast, the new trailer is light on the silly humor that came with Shia LaBeouf and Co. and focuses more on the action.
Are you convinced director Michael Bay may raise the bar this time around? "Transformers: Age of Extinction" opens June 27.