(Outside, the Doctor battles through the snow, followed some distance behind by Ben and Polly. The Doctor stops in front of the TARDIS and opens the outer doors. He enters, and the doors shut just as Ben and Polly arrive.)
POLLY: Wait for us!
BEN: Open the door!
POLLY: Hey, let us in!
BEN: You can't leave us here, of all places! Open up!