When information is a weapon, everyone is at war. We live in a world of influence operations run amok, a world of dark ads, psy-ops, hacks, bots, soft facts, ISIS, Putin, trolls, Trump. We've lost not only our sense of peace and democracy - but our sense of what those words even mean.

As Peter Pomerantsev seeks to make sense of the disinformation age, he meets Twitter revolutionaries and pop-up populists, 'behavioural change' salesmen, Jihadi fan-boys, Identitarians, truth cops, and much more. Forty years after his dissident parents were pursued by the KGB, he finds the Kremlin re-emerging as a great propaganda power. His research takes him back to Russia - but the answers he finds there are surprising.