Season guide
Schloss Einstein: Season 21
26 episodes
Premiered Feb 21, 2018 Updated Sep 26, 2026
Previously on Schloss Einstein
Season 21 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Schloss Einstein Season 20.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 21 Episodes
Episode Guide
🛡️ SPOILER SHIELD
Season 21 Progress Shield
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S21·E1
Mytharc
Episode 1
Feb 21, 2018 · 25 min
Martha, Sarah and Nele are ready: if Frau Schiller wants war, she can have it! The new school year begins with a shock for Martha, Sarah and Nele: Ms. Schiller has distributed them