This is basically 'Transformers' meets 'Game of Thrones' so if that's what you're looking for from your summer blockbuster, happy days.
Here's the official synopsis:
The Last Knight shatters the core myths of the Transformers franchise, and redefines what it means to be a hero. Humans and Transformers are at war, Optimus Prime is gone. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth. Saving our world falls upon the shoulders of an unlikely alliance: Cade Yeager (Mark Wahlberg); Bumblebee; an English Lord (Sir Anthony Hopkins); and an Oxford Professor (Laura Haddock).
Cagey plot, plenty of special effects and lots of explosions. So a typical Michael Bay movie then.
'Transformers: The Last Knight' is set for release on June 23rd.