Details
- Show
- Supergirl (2015)
- Season
- Season 3
- Episode
- S03xE17
- Air Date
- 07 May 2018
- Where to watch
Overview
Supergirl season 3, episode 17 — “Trinity” (S03xE17) first aired on 07 May 2018.
Still reeling after learning about Lena’s secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.