Working for the MI7 agency, Johnny English is suddenly promoted to super spy after Agent One is assassinated and every other agent is blown up at his funeral. When entrepreneur Sauvage sponsors an exhibition of the Crown Jewels and the valuable gems disappear on the opening night, the newly designated agent must jump into action. Tracking the thieves' underground escape route, English locks in on Sauvage despite repeated assurances by boss Pegasus...

"Impenetrable. Well protected. Secure. Home to the most valuable jewels on earth. But once a year, when the Queen attends the State Opening of Parliament, the Metropolitan Police must execute the most secret operation in their armory as they transport the Crown Jewels across London. For decades, the elite squad at Scotland Yard have been in charge of the operation. And for decades, it's run like clockwork. But this year, everything is about to change....