Chicago Cubs
In the 2016 World Series, the Cubs beat the Cleveland Indians.  They fell 3 games to 1 to the Indians, but then, on the brink of elimination, won the next three games, and thereby won the series.  Game 7 went down as a classic.  It was an exciting back-and-forth game, in which the Cubs won in 10 innings to win their first World Series since 1908.  The Cubs became sixth team to win a World Series after trailing 3 games to 1.