S15E12Supernatural season 15 episode 12: Galaxy Brain
Aired 16 March 202042 minRated TV-14
Where to watch Supernatural Season 15 in Australia
Supernatural season 15 is streaming in Australia on Prime Video (subscription), HBO Max (subscription) and Stan (subscription). You can also buy it on Apple TV from $44.99 and Fetch TV from $44.99.
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From $11.99/mth
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From $9.99/mth
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Availability checked 16 November 2026.
What happens in “Galaxy Brain”
Sam and Dean respond to a frantic call and together along with Castiel, Jack and Jody, assist in an extraordinary and heartbreaking rescue. Billie surprises everyone with a visit to the bunker.
Episode summary: TMDB.
Before you watch
- It is episode 12 of 20 of season 15, so watch episodes 1 to 11 first.
- It runs about 42 minutes.
- Directed by Richard Speight Jr., written by Robert Berens and Meredith Glynn.
- TMDB users rate it 6.8 out of 10 (25 votes).
Supernatural trailer
The official trailer for the series (no preview of this episode has been published).
Play video: Supernatural trailer
Cast and crew of this episode
- Director
- Richard Speight Jr.
- Writers
- Robert BerensMeredith Glynn
- Guest stars
- Sandra Ferens as MerleNicco Del Rio as Radio Shed ClerkAmy Waugh as Radio Shed CustomerKim Rhodes as Jody MillsKatherine Ramdeen as Alex JonesYadira Guevara-Prip as Kaia NievesAlexander Calvert as Jack
Credits: TMDB.
More from Supernatural Season 15
Every episode of Season 15Supernatural episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.