The TARDIS is in flight and Jamie is alone in the console room. He hears a banging outside the doors, but when the Doctor and Zoe enter, he can't convince them he heard something. The noise sounds again, and the Doctor realises it is someone knocking on the TARDIS. He even hears a man's voice outside. The Doctor opens the doors and lets the man in. He introduces himself as Bill Rigby, and he sells windows — with double glazing. He tries to convince the TARDIS crew to buy some windows, even giving them leaflets, but the Doctor bundles him out of the TARDIS, back into the Vortex.