We've also been discussing this in the Season 2, Episode 6 thread. I think the producers knew this would happen, because that episode wraps up most things very nicely, with no cliff-hangers. True, Nurse Phinney is still very sick, but Dr. Foster arrives in time to save her. For the most part, the plot improved in the second season and there were a few less historical anachronisms other than the inevitable too-wide women's collars. The opening scene in Episode 6 about Antietam I thought was wonderful. The scenes in which Dr. Hale and Nurse Hastings (with lots of help from the rest of the staff) got rid of the awful major had me almost rolling on the floor! And thanks to the activites of "yes, that Pinkerton" and their effect on the Greens, the anachronous gatling guns (the biggest historical stumbling block for most of us) went up in smoke along with the unburied body!