We Can Be Heroes (Supergirl)

Supergirl is an American superhero action-adventure drama television series developed by Ali Adler, Greg Berlanti and Andrew Kreisberg (the latter two having previously created Arrow and The Flash) that originally aired on CBS and premiered on October 26, 2015. It is based on the DC Comics character Supergirl (Kara Zor-El), created by Otto Binder and Al Plastino, and stars Melissa Benoist in the title role. Supergirl is a costumed superheroine who is the biological cousin to Superman and one of the last surviving Kryptonians.

The series was officially picked up on May 6, 2015, after receiving a series commitment in September 2014, and received a full season order on November 30, 2015. On May 12, 2016, Warner Bros. Television announced that the series had been renewed for a second season and that it would move from CBS to The CW. It debuted on October 10, 2016. On January 8, 2017, The CW renewed the series for a third season, which began airing on October 9, 2017. As of October 16, 2017,^[update] 44 episodes of Supergirl have aired.

Siobhan discovers that the women in her family are cursed with the spirit of a banshee, which can only be quieted by killing whoever wronged them. Deciding to kill Kara, Siobhan frees Livewire from captivity at the DEO and suggests they team up to kill both Kara and Cat. Siobhan—now calling herself Silver Banshee—and Livewire kidnap Cat and wreak havoc on National City Park. Meanwhile, Supergirl has a run-in with Barry Allen / Flash, a superhero from an alternate universe, whom she asks for his help to find Livewire and Silver Banshee. After a climatic fight in a downtown park, Kara is able to subdue them and win back National City's trust. At the end, Kara decides to reveal her romantic feelings for James only to discover that everyone in National City has fallen under some kind of spell, revealed by Non to be the result of Myriad.

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Wikipedia