The official teaser trailer for Transformers: The Last Knight begins to the sound of Anthony Hopkins' unique voice. As dramatic sequences from past wars are displayed - including WWII, with the Nazi flag flying - he says, "It has been said through the ages, 'without sacrifice, there can be no victory.'"
The trailer continues to Anthony's narration and showcases the brewing battle between humans and robots. Mark Wahlberg and Josh Duhamel are featured fighting on the side of humans, and a previously-assumed dead Optimus Prime appears to be representing the villains. The final encounter highlighted in the trailer is an epic one, pitting Optimus Prime against Bumblebee.