A new promotional clip for Transformers: Age of Extinction rewinds to the Dark of the Moon invasion of Chicago by the Decepticons, and warns against the "dangerous Transformers" who are out to destroy mankind, was revealed on May 22.

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In the video the mean machines are wreaking havoc in Chicago as news channels relay the story, by then of which the dystopian end is chanelled on the screen suggesting that it was not only Chicago that had taken the hit but other cities were in line too and national emergency had been declared.

In the latest trailer of the film, fans also got a first good look at Lockdown, whose vehicular form is the Lambhorgini. The villainous transformers is seen combatting Optimus Prime in the clip. The trailer also gets a better look at the human villains, Joshua (Stanley Tucci) and Sue Yueming (Li Bingbing) who are researching to clone Transformers and create their own army of them. There is a huge hulk of a metal and wire, looking like one of the transformers, being inspected by researchers. Joshua is then seen with his assistant Sue Yueming (Li Bingbing) talking about a striking new development in their sophisticated lab.

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Mark Wahlberg and Jack Reynor are the male leads of the film and will be playing a race car driver. His co-star Nicola Peltz will play Reynor's girlfriend in the film, and Wahlberg will portray Flynn Vincent, Peltz's dad. Kelsey Grammar is the main villain. The cast also includes Stanley Tucci, Sophia Myles, T.J. Miller, Bingbing Li, Victoria Summer and Geng Han.

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Transformers: Age of Extinction will hit theaters on June 27, 2014. 

Watch the clip here:

Tags: Transformers 4: Age of Extinction