Where can I watch “Once Upon a Time” Season 7 Episode 18 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 “The Guardian”?

Watching earlier episodes in season 7 helps you follow the plot and character arcs leading into this episode.

Watch Once Upon a Time Season 7 Episode 18 Online

“The Guardian” — Watch "Once Upon a Time" Season 7 Episode 18 online in HD for free. Check streaming providers, cast, and episode details.

Apr 20, 2018 Season 7 Episode 18 43 min TV-PG

6.5 ★ ★ ★ ★ ★

6 votes

Once Upon a Time Season 7

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Season 7 Episode 18 — Aired on Apr 20, 2018 • runs about 43 minutes.

Directed by Geofrey Hildrew.

Written by David H. Goodman, Brigitte Hales.

Notable cast/guest names in this episode include Lana Parrilla, Colin O'Donoghue, Robert Carlyle, Gabrielle Anwar.

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

Looking for “watch Once Upon a Time Season 7 Episode 18 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Following Nick's death, Weaver discovers the Dark One Dagger has been taken and sets out to get it back, even if it means betraying Roni's trust. Meanwhile, Margot takes Tilly on a date, but their time together takes an unexpected twist. In a flashback, Rumple, desperate to be reunited with Belle, pays Alice a visit.