Network: The CW
No. of Seasons: 6
The CW didn’t give a reason for the show’s cancellation, but ratings certainly played a major part. Ratings dropped steeply through the fifth season, which only averaged a 0.22 rating in the 18-49 demographic and 837,000 viewers ― down by 36% in the demo and down by 30% in viewership. Benoist’s new role as a mom might also be one of the factors that led to the decision to end the series with season 6.
Supergirl tells the story of Superman’s cousin Kara Zor-El who decides the time has come to embrace her superhuman abilities and fulfill her destiny as a hero.