Where can I watch “Supergirl” Season 6 Episode 4 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 “Lost Souls”?

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

Watch Supergirl Season 6 Episode 4 Online

“Lost Souls” — Watch "Supergirl" Season 6 Episode 4 online in HD for free. Check streaming providers, cast, and episode details.

Apr 20, 2021 Season 6 Episode 4 42 min TV-14

5.4 ★ ★ ★ ★ ★

7 votes

Supergirl Season 6

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Where can I watch "Lost Souls" online?

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Season 6 Episode 4 — Aired on Apr 20, 2021 • runs about 42 minutes.

Directed by Alysse Leite-Rogers.

Written by Nicki Holcomb, Karen Maser.

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 4 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena joins the Super Friends on a mission but finds she disagrees with their plan of action against the Phantoms and wonders if she is truly ready to be a part of the team.