A shuttlecraft is brought aboard containing a man who is near death. His vital signs are all over the place. Dr. Crusher makes him her special project and through every trick in the books, she manages to stabilize him. When he has recovered his health, he tells them he has no idea who he is. He knows bits and pieces, one being that there were once more like him but they all perished. Another thing is that he seems to have the gift of healing. He cures O'Brien's dislocated shoulder and when Worf takes a fifteen foot tumble, breaking his back, he touches him and Worf fully recovers. The unfortunate things is that there is a ship with a captain that insists that this guy is a criminal, but when asked what the man did, he won't say. This is one of those kind of transition to a new species shows where the entity is so much more than he appear. Picard is once again faced with needing justification to turn a guest over to a hostile authority. As a matter of fact, these guys are up front in saying that the man will be executed the minute they lay hands on him. Good episode with some spiritual implications.