Supergirl Talk Podcast #19 - S 1 Ep 18 WORLD's FINEST

Siobhan discovers that the women in her family are cursed with the spirit of a Silver 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. Siobhan—now calling herself Silver Banshee—and Livewire kidnap Cat and wreak havoc in National City Park.