The episode follows Sam, Dean, Castiel, and Jack as they navigate the escalating threat of Chuck (God), who has begun systematically destroying alternate universes. "Supernatural" Galaxy Brain (TV Episode 2020) - IMDb

is the 12th episode of the 15th and final season of the long-running series Supernatural . It first aired on March 16, 2020, and was directed by Richard Speight, Jr., who also famously played Gabriel/The Trickster on the show. Plot Summary

[s15e12] Galaxy Brain -

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**Some conditions apply. Personal guarantees may be required in certain circumstances (e.g., when requesting a higher credit limit). See disclosures for details. [S15E12] Galaxy Brain