Using SuperGirl's help won't work. She is on Earth-38 and Cisco would have to open a breach to that Earth to even reach her. They already tried breaching the nuclear bomb to a dead Earth and discovered that they could not due to the technical requirements of breaching. Flashtime makes breaching impossible because it takes away the main component: Time.
Episode
Using SuperGirl's help won't work. She is on Earth-38 and Cisco would have to open a breach to that Earth to even reach her. They already tried breaching the nuclear bomb to a dead Earth and discovered that they could not due to the technical requirements of breaching. Flashtime makes breaching impossible because it takes away the main component: Time.