Where can I watch “Doctor Who” Season 2 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 “Lucky Day”?

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

Watch Doctor Who Season 2 Episode 4 Online

“Lucky Day” — Watch "Doctor Who" Season 2 Episode 4 online in HD for free. Check streaming providers, cast, and episode details.

May 3, 2025 Season 2 Episode 4 45 min TV-PG

5.6 ★ ★ ★ ★ ★

43 votes

Doctor Who Season 2

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Where can I watch "Lucky Day" online?

You can watch it through the button below, and it is free.

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Season 2 Episode 4 — Aired on May 3, 2025 • runs about 45 minutes.

Directed by Peter Hoar.

Written by Pete McTighe.

Notable cast/guest names in this episode include Ncuti Gatwa, Varada Sethu.

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

Looking for “watch Doctor Who Season 2 Episode 4 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Ruby Sunday faces life back on earth without the Doctor. But when a dangerous new threat emerges, can Ruby and UNIT save her new boyfriend, Conrad, from the terrifying Shreek?