I wrote a few weeks back that Mad Men season 4 may be the best season of the series yet. After seeing the events that transpired in the ensuing weeks I stand behind that statement. But the reason Mad Men season 4 is so exceptional is because of all that came before it paved the way for a great season. Would we really be as interested in Don Draper's fall from grace if we had never seen him give that fantastic "carousel speech" in season 1? Would the ice queen Betty has become be as hard to watch if there wasn't a season when we were actually rooting for her? Would Joan's decision to keep her baby be as powerful if we hadn't seen the hell she's been through in her marriage?
Check out our fan columnist's recap of the Mad Men season 4 finale "Tomorrowland"
Source: http://www.buddytv.com/articles/mad-men/mad_men_season_4_change_is_goo-38419.aspx