Details
- Show
- Supergirl (2015)
- Season
- Season 4
- Episode
- S04xE09
- Air Date
- 11 December 2018
- Where to watch
Overview
Supergirl season 4, episode 9 — “Elseworlds (III)” (S04xE09) first aired on 11 December 2018.
Supergirl, The Flash, Green Arrow and Superman engage in the battle of their lives.
The crossover starts on The Flash S05E09 Elseworlds (I) and Arrow S07E09 Elseworlds (II).