Where can I watch “Supergirl” Season 6 Episode 6 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

Do I need to watch earlier episodes before “Prom Again! (2)”?

Watching earlier episodes in season 6 helps you follow the plot and character arcs leading into this episode.

Watch Supergirl Season 6 Episode 6 Online

“Prom Again! (2)” — Watch "Supergirl" Season 6 Episode 6 online in HD for free. Check streaming providers, cast, and episode details.

May 4, 2021 Season 6 Episode 6 42 min TV-14

5.7 ★ ★ ★ ★ ★

7 votes

Supergirl Season 6

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Season 6 Episode 6 — Aired on May 4, 2021 • runs about 42 minutes.

Directed by Chyler Leigh.

Written by Rob Wright, Jess Kardos.

Notable cast/guest names in this episode include Melissa Benoist, Chyler Leigh, David Harewood, Katie McGrath.

This page includes 6 official still(s) (when available) plus legal availability links.

Looking for “watch Supergirl Season 6 Episode 6 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Part two of the flashback episodes pick up where things left off - Young Kara experiences kryptonite for the first time, Nia and Brainy are trapped by invading aliens, and a young Cat Grant may be the reason Supergirl never gets out of the Phantom Zone.