The Doctor has suddenly become aware of a surgery he supposedly performed on Kim, but he has no recollection of it. He begins the process of trying to wade through deprogramming efforts to get to the truth. As he realizes that Janeway is at the center of this, he becomes quite volatile. His reactions are beyond his holographic being as he strives for answers. The crew is up to something, he thinks, but why? The conclusion to this is really touching. There is such caring on board this vessel.