"A new era has begun. The age of the Transformers is over," says a voice during the latest TV spot for Transformers: Age of Extinction.

But thanks to Cade Yeager's (Mark Wahlberg) discovery of a familiar old and defunct Autobot and bringing it to life again, it appears that the assumption of the narrator is wrong, and the robots from Cybertron are getting ready to wage yet another war on Earth.

Someone is searching for Optimus Prime, the leader of the Autobots, for an unnamed reason, and when an envoy shows up at Wahlberg's home his Transformer quickly springs to life.

"Transformers: Age of Extinction" hits theaters June 27.