Retired spy Johnny English (Rowan Atkinson) is teaching young children at a school when he's summoned by MI7. They need him back in action because the country is in chaos after the identities of British undercover agents are leaked. The British Prime Minister (Emma Thompson) is less than thrilled by this turn of events, but she doesn't have a choice.

His old teammates are more welcoming, especially his old sidekick Bough (Ben Miller), who greets him warmly. They travel to the south of France on their mission to find a mastermind hacker, where the bumbling English has to learn taught about modern technology, using new gadgets such as virtual reality glasses, in order to make the mission a success.