Where can I watch “Citadel” Season 2 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 “Highlands”?

Watching earlier episodes in season 2 helps you follow the plot and character arcs leading into this episode.

Watch Citadel Season 2 Episode 6 Online

“Highlands” — Watch "Citadel" Season 2 Episode 6 online in HD for free. Check streaming providers, cast, and episode details.

May 6, 2026 Season 2 Episode 6 36 min TV-14

8.3 ★ ★ ★ ★ ★

3 votes

Citadel Season 2

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Where can I watch "Highlands" online?

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Season 2 Episode 6 — Aired on May 6, 2026 • runs about 36 minutes.

Directed by Greg Yaitanes.

Written by David Weil, David Rosen.

Notable cast/guest names in this episode include Richard Madden, Priyanka Chopra Jonas, Ashleigh Cummings, Roland Møller.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Citadel Season 2 Episode 6 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

As Joana accelerates the plan to assassinate the Russian President at the G8 Summit, Mason and Nadia take Abby to a safehouse in Scotland. But when they uncover the horrific truth about what was done to Abby, it triggers a devastating chain of events.