With "Transformers 4" set for a 2014 release filming for the fourth film of the franchise is still underway with fans anxious to see a teaser trailer sooner rather than later. The most recent video provides spoilers for the highly anticipated movie.

On Wednesday afternoon many people in Chicago gathered to see the Michael Bay directed film which he promised would provide the "mother of all bomb" style explosions. The scene that onlookers witnessed gave the production a second opportunity to blow up the Damen silos in the Pilsen neighborhood.

According to Redeye, it is unknown if there were any actors on the scene when the blast happened around noon. However, a very famous blue and red semi-truck better known as Optimus Prime was present for the explosion.

Several videos featuring the pyrotechnic display went viral on YouTube late Wednesday, with many videographers posting up different angles in which they capture the destruction from.

Check out the video below for what you can expect from "Transformers 4: Age of Extinction."