Winn brings Siobhan to the DEO to figure out how she survived the fall. 

Siobhan overhears Lucy questioning Livewire inside the DEO.

Kat gives Kara advice about James. 

Siobhan arrives at CatCo and screams at Kara, sending her out a window. The Flash arrives and catches her mid-fall. He realizes he's on the wrong Earth and needs help getting home. 

Winn is intrigued by Barry, whereas James is clearly jealous. 

Cat wants to name the new superhero the Blur. 

Siobhan learns she and her family are cursed and the only way to make it stop is to kill the object of her anger. She breaks Livewire out of the DEO to help her. 

Kara asks Barry to help her with Livewire. 

The Flash and Supergirl take on Livewire and Silver Banshee. It doesn't go well. 

Barry gives Kara some advice on her current situation with the city's view of Supergirl. 

Livewire and Silver Banshee come to CatCo. Winn tries to get through to Siobhan, but it doesn't work. They kidnap Cat. 

Barry develops ear buds to protect them from Banshee's voice. 

Supergirl and The Flash come to Cat's rescue. Supergirl saves a helicopter from Livewire, bringing the city back to her side. 

Firefighters arrive and take out Livewire after Supergirl is hurt. 

Barry thinks if Kara will throw him forward at her fastest that they can combine their speed and send him home. 

Kara kisses James. He turns around and walks out like a zombie. 

Non has enacted Myriad, which takes control of the people of National City.