Every season of Mercy ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Mercy!

Mercy is a medical drama which aired on NBC from September 23, 2009 to May 12, 2010. The series initially aired on Wednesday nights at 8/7c, as part of the 2009 fall season, but was pushed back to 9/8c in April.

On October 23, 2009, Mercy was picked up for a full twenty-two-episode first season. On May 14, 2010, NBC announced that Mercy had been cancelled and would not return for a second season due to low ratings.

The Best Seasons of Mercy

Every season of Mercy ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Mercy!