The new TV spot for Transformers 4: Age of Extinction was released on May 21 online and it features new bits which haven't been seen by fans before.

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The most distinguishing part features Kelsey Grammer in the role of main villain, Harold Attinger. Attinger is seen half threatening Cade (Wahlberg), "You have no idea what you're involved with here."

While most of the action sequences featuring the transformers we are already familiar with play out in slo-mo and little music in the backdrop, a riotous scene flashes through the screen capturing a dinobot tearing through the city.

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Attinger is a counter-intelligence agent, who is the main antagonist in the film. Earlier this month, Grammer spoke about his "malevolent" character to Empire magazine.

He's a no-nonsense guy. He's lived his life in the shadows for 30 years in the service of his country, and he likes to be unremarkable yet very efficient." he said.

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The Frasier star also spoke about working with director Michael Bay for the very first time.

"I don't know if Michael has seen Frasier," laughed Grammer. "He's been very respectful and funny. He's a terrific guy and quite a filmmaker. He just said to me the other day, 'You're Kelsey Grammer - you can do whatever you want to do.' So I guess he at least has some acquaintance with my work."

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One of his accomplices, an agent working under him, is Savoy, who is being played Titus Welliver

Jack Reynor is the male lead 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 Mark Wahlberg will portray Flynn Vincent, Peltz's dad.  The cast also includes Stanley Tucci, Sophia Myles, T.J. Miller, Bingbing Li, Victoria Summer and Geng Han.

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

Watch the TV spot here: