A really clever and thought-provoking tale about a major cover-up in a human colony. It’s quite reminiscent of George Orwell’s 1984, with the colonists brainwashed into believing everything is fine and “There’s no such thing as Macra”, and I like that Ben becomes brainwashed by the Macra too. It raises the personal stakes nicely, and adds an interesting bit of conflict between Ben, the Doctor and his friends.