Renard begins to submerge the submarine carrying the nuclear warhead, so Bond leaps in the water after it and climbs on board. He first frees Christmas. Then, while holding off Renard's men, he attempts to make the submarine surface so that it will be detected on navy radar but instead makes it dive deeper, causing the sub to hit bottom. As the submarine begins to flood with water, Bond and Christmas work their way toward the hatch, until Christmas notices that Renard has locked himself in the reactor room and is attempting to load the plutonium rod, which will set off an explosion that will destroy Istanbul. To get to the reactor room, Bond exits through one escape hatch and then re-enters the sub through the escape hatch in the reactor room. Once inside, he opens the door for Christmas to gain entrance to the reactor room and, together, they try to stop Renard from inserting the plutonium rod. Just as it looks like Renard is going to win, Bond reconnects a blown pressure hose, causing the reactor to backfire and eject the plutonium rod, which impales Renard through the chest. The reactor floods with water, and Bond and Christmas escape by ejecting themselves out through a torpedo tube. As they swim to the surface, the submarine safely blows up underwater. Back at MI6 headquarters in Scotland, M (who has returned safely from Azerbaijan) asks if there's been any word from Bond, who is still in Istanbul sharing champagne with Christmas. R (John Cleese), Q (Desmond Llewelyn)'s understudy, manages to pick up Bond with his thermal imaging card. When the MI6 staff realizes what Bond and Christmas are really doing, R discretely flicks off the image.