Emil Keller has perefected his process to remove evil impulses from the human brain. Now he's over here- at Strangmoor Prison and trying it out in Great Britain!
But the world is on the brink of WW3 and there's a peace conference in London.
And while this is going on, they're moving The Thunderbolt Missile. Bad timing or what?

Just how will the Doctor, Jo and UNIT fit into this web of mayhem?

And what do you think of Mind of Evil?

Si xx