Where can I watch “Doctor Who” Season 26 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).

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Watching earlier episodes in season 26 helps you follow the plot and character arcs leading into this episode.

Watch Doctor Who Season 26 Episode 4 Online

“Battlefield (4)” — Watch "Doctor Who" Season 26 Episode 4 online in HD for free. Check streaming providers, cast, and episode details.

Sep 27, 1989 Season 26 Episode 4 25 min PG

7.6 ★ ★ ★ ★ ★

5 votes

Doctor Who Season 26

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Season 26 Episode 4 — Aired on Sep 27, 1989 • runs about 25 minutes.

Directed by Michael Kerrigan.

Written by Ben Aaronovitch.

Notable cast/guest names in this episode include Sylvester McCoy, Sophie Aldred.

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

Looking for “watch Doctor Who Season 26 Episode 4 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Morgaine forces Ace and Shou Yuing to hand over Excalibur by threatening to release the Destroyer, so the Doctor and the Brigadier enter a dimensional portal to stop her.