Season Four proved that truth and justice are stronger than fear and hate when 'Supergirl' stopped Lex Luthor's anti-alien campaign with the power of her journalistic skills as Kara Danvers (Melissa Benoist) - no cape required. Life in National City is just returning to normal in Season Five when more changes come into play. CatCo Worldwide Media has a new owner and a new star reporter. Supergirl learns the truth about Lena Luthor (Katie McGrath), who, in turn, learns a secret about Kara. The question now is: How much will things change? A brand-new costume, shocking revelations and threats from dangerous Obsidian technology await in 19 exciting episodes, including the series' 100th, in which Mxyzptlk makes Kara an offer to adjust a detail in her past that could alter history.