The teaser was debuted during Grammer's recent appearance on 'Late Show with David Letterman'.
The first clip for "Transformers: Age of Extinction" has been released. Debuted during Kelsey Grammer's visit to "Late Show with David Letterman", the teaser shows the actor's character having a tense conversation with Mark Wahlberg's Cade Yeager about the robots in disguise.
Directed by Michael Bay, the fourth installment of "Transformers" film series is set a few years after the battle in "Transformers: Dark of The Moon'' that left the city torn. Government officials are tracking down the remaining robots to exploit their technology.
Yeager and his daughter Tessa, played by Nicola Peltz, then find Optimus Prime who reactivates and teams with Bumblebee, a new group of Autobots and the famed Dinobots to fight the menace of aliens and the officials.
"Transformers: Age of Extinction" also stars Stanley Tucci, Jack Reynor and T.J. Miller. The flick is set to open in U.S. theaters on June 27.