Pyrénées occidentales, année 778. Lorsque sa terre est menacée par les impitoyables armées de l'empereur franc, un chef de guerre basque demande l'aide de ses dieux ancestraux.
Donostia-San Sebastián, Basque Country, Spain, 2011. Maider, a filmmaker, moves to the very same flat where pedadogist Elbira Zipitria Irastorza (1906-1982) clandestinely established the first ikastola, a Basque school, under the harsh regime of dictator Francisco Franco. Despite of her pioneering work, developed throughout thirty years, her story is not well known, so Maider, intrigued, begins to research…