Dizi Adı: Supergirl
Bölüm Adı: Crisis on Infinite Earth: Part One (I)
Sezon/Bölüm: 5. Sezon 9. Bölüm
Yayın Tarihi: 8 Ara. 2019

The Monitor sends Harbinger to gather the worlds’ greatest heroes – Supergirl, The Flash, Green Arrow, Batwoman, White Canary, The Atom and Superman – in preparation for the impending Crisis. With their worlds in imminent danger, the superheroes suit up for battle while J’onn and Alex recruit Lena to help them find a way to save the people of Earth-38.

This crossover continues on Batwoman S1E09, The Flash S6E09, Arrow S8E08, and Legends of Tomorrow’s special episode.