The Ant's Legs
Black Jack spots Mitsuo, a boy in a wheelchair, intently reading a book called "The Records of a Disabled Person," in a coffee shop. A few days later, Mitsuo sets off from the square, carrying out a plan to walk from Hiroshima to Osaka to rehabilitate his disabled leg and challenge himself. The walk is broadcast on television, and Mitsuo can be seen on the TV in Black Jack's living room. That evening, Black Jack leaves his house, wanting to travel alone. As Mitsuo walks along the national highway and approaches a hill, Black Jack appears from a parked car...
Aired 18/10/2004EP 2 - The Ant's Legs

Black Jack (TV)
Black Jack is an "unregistered" doctor with a clouded, mysterious past. He works with his little assistant Pinoko (who has a massive crush on the doctor), dealing with medical cases not very well known, which can be strange, dangerous, or not known at all. But he is a genius, and can save almost any of his patients' life (as long as they have the money for it, that is), and is known to many around the world, especially to those of medicine and science. He's a man of science himself, and does not believe much until he has seen it, yet it is many times he is surprised by love and nature often overpowering the science he bases his life in.
(Source: Anime News Network)