First of all they end up back in London. Bond is 'captured' by the villains and taken to MI6, where Blofeld tells him that the building will explode in three minutes. He can either jog back the way he came in and escape quickly, or he can search the building for his girlfriend. Blofeld retires to a helicopter to observe events, while Bond makes a sweep of MI6. Bond, seemingly defeated, takes a time out to stand and stare at Blofeld in his hovering chopper, then realises that the person he was looking for is in a room next to him, busts her out, jumps off the building into a net and takes a boat out on the Thames. While boating along the Thames he shoots Blofelds helicopter down with a handgun. The Helicopter crashes and Blofeld is left crawling, injured over a road. 007 and Q wander over and stand over him smugly. The End. I don't even have to explain why I find that underwhelming and silly.