Alfie begins to cry up in the store. A monitor in the Cyber ship picks it up. Craig's emotions start coming back. The Cybermen are confused, as this should be impossible. Electricity crackles over Craig's new Cyber face. The Doctor latches onto this iota of hope. "Craig! You wanted a chance to prove you're a dad! You are never gonna get a better one than this!" The metal mask splits open, revealing Craig's human face. The machinery clanks to a halt, releasing him. The Cybermen stumble around. The Doctor exposits something about emotional feedback loops. The Cybermen's heads explode and their ship is soon to follow. The Doctor and Craig teleport back up into the elevator, clutching at each other for dear life.
They reunite with Alfie and it's all hugs and kisses. Well, for Alfie and his dad, anyway. "I blew them up with love!" Craig says. The Doctor tries to explain that it was technically something else that's very complicated and scientific, but then finally gives up and lets Craig have his moment.
Later, Craig has found a fresh shirt he'd like to buy. The saleswoman would like to give Craig the Doctor's employee discount. "Are you two married?" she asks. "Oh, no, we talked about it," Craig says. "It's just a piece of paper, isn't it?" He's referring to himself and Sophie but this kindly lady still has the wrong end of the stick. "It's nice for babies to have two daddies who love each other," she says. Craig finally catches on and has a good laugh. He starts to explain, but the Doctor has vanished.
Craig returns home, feeling sad until he realizes the house is immaculate. The Doctor is there waiting for him, having gone back in time a bit to get things fixed up. Craig is touched. The Doctor gave up his galactic alignment for him. As another gift, the Doctor tells him that Alfie is very proud of his dad. With that, he's ready to head off to America. He borrows a handful of blue envelopes and a Stetson, leaving just before Sophie returns home. She's thrilled, if a little puzzled, to find the house spotless and Craig being a more confident dad. Craig tries to act innocent, but then Alfie burbles out "Doctor" and gives the game away.