In our last look at the 2003 Cubs, we covered the historic series win by the Cubs over the Atlanta Braves. The Cubs won the series 3-2 and advanced to the National League Championship Series. The Cubs were not strangers to the NLCS, having played in it following the 1984 and 1989 seasons. However, there were no wild cards in those years and so this was actually the Cubs first postseason series win since the 1908 championship team.
In a way, you can break down the Cubs postseason results in sections. They played in three straight World Series from 1906 to 1908.