After breaking the enigma, Alan Turing and his team discover that there will be an attack on a British passenger convoy, and hundreds of civilian lives are at risk. Hugh starts calling Commander Denniston's office to let him know of the attack, but Turing stops him. Turing's rationale is that it will alert the Germans that they've broken the enigma. Their biggest challenge now is keeping secret the fact that they broke the enigma.
Although Zombies are terrorizing the world in pursuit of the brownies Billy made with Grim's ingredient, Grim keeps this a secret and doesn't allow anyone to touch his brownies, despite seeing the mayhem the zombies are causing.
King Faisal and T.E. Lawrence present the Arab view at the Paris Peace Conference of 1919. Faisal reminds the Allied Powers that the Arabs were promised a state of their own and fought alongside the allies for that purpose. The secret Sykes-Picot treaty had already carved up the lands Faisal was hoping to unite between the French and British, and he asks the Allied Powers to keep their word.