A couple of homeless guys order some kind of gross British food from a wagon on the edge of a wasteland, brands burning in barrels, and the elder tells the younger -- fathers and sons, everywhere you look -- about how Obama's giving a speech on Christmas about ending the recession. That'll age well. The Master appears in the background, brooding in a hoodie, as they chat cheerfully with the woman and walk away with their food. When they are gone, the Master appears and grins horribly into her smiling face. He whips off his hoodie, growling: "I am so hungry!" She stares, he laughs, she dies in some horrible fashion.
"They're saying that the President's got this grand plan. He's going to save the world with some big financial scheme." They chat about that, about hope and how crazy America must look to everybody else even today, and the Master lands on a box from out of the sky, stuffing himself with his pie. They're friendly but wary, and he very quickly proves to be totally nuts. "Want cheese and chips and meat and gravy and cream and beer and pork and beef and fat and great big chunks of hot wet red..." The elder tramp realizes they need to bounce, but not before Ginger, the younger, notes that the Master looks like Saxon: "The one that went mad." He laughs, friendly and curious, and the Master predictably goes batshit on a slow burn.
"Isn't that funny? Isn't that just the best thing of all? The Master of disguise, stuck looking like the old Prime Minister. I can't hide anywhere! He can see me, he can smell me... Can't let him smell me! Doctor, Doctor, shockter stopped-her, got to stop the smell! The stink, the filthy, filthy stink!" He wipes crazily at himself as the elder suggests that Ginger get a fucking move on. "Because it's funny! Don't you see? Look at me! I'm splitting my sides. I am hilarious!" His face becomes a skull, for a moment, with an electric buzz, like a raging beast. "I am the funniest thing! In the whole wide world!" They run, while he laughs; when the reach the van Sarah's gone: They are all smoking skeletons. The end of time. He jumps through the air, like the Incredible Hulk, hundreds of feet up, and lands on them, skeleton mouth first.