The Two Doctors

Season 1 Episode FinaleThe Doctor arrives in Japan, where he meets an angry Japanese man who... strangely looks like the Doctor. The Doctor tries to calm the man down, but he won't back down. The man proceeds to try and attack him, but the Doctor knocks him out. He then sees that he IS the Doctor, but in another time. The other Doctor then wakes up, but forgets the encounter. The Doctor then helps the other Doctor get back to his time...