Mugaldekoak is set in the early 40s, when, on this side of the border, the wounds of the Civil War were still open and, on the other, they were living under occupation by the German Army. The tale revolves around the Comète Network, an initiative developed during World War II on the border with Navarre: the clandestine evacuation of British pilots brought down in enemy territory.

Ainhoa's career as a pianist is put on hold when she's knocked down in the center of Barcelona. Her love life isn't exactly at its best either. Shortly before the accident she met Imanol, but had been incapable of sharing her life with him due to an inability to show her feelings. The origins of her fears lie in the ETA attack she witnessed at the age of 15.

Vitoria, Basque Country, Spain, March 3, 1976. After several months of protests demanding decent working conditions, a general strike is called. Thousands of workers gather at the church of San Francisco while a hundred heavily armed policemen wait to act.

Spain. The Basque Country. Sometime in the 90s. Josu Jon, a young member of a terrorist organization, has suffered an almost complete memory loss after being wounded in a shooting with the Spanish police. As he awaits for his trial, his condition is being treated at the prison hospital. Other inmates belonging to the same organization try to make him remember how brave a "gudari" -a Basque soldier- he is and how he must go back to the armed fight for the independence of their country as soon as he gets out of prison. Meanwhile, Xabier, a college professor who has been death-threatened by the terrorists due to his political views on the Basque situation, is having an affair with Francesca, a young psychologist who happens to end up trying to help Josu Jon recover his memory. A warm feeling of mutual affection grows between her and her patient. At a point, it doesn't seem to be clear whether Josu Jon really wants to recover his memory or rather forget forever who he actually is.

Little Lide disappears in the forest while her family packs up their home. As a fire breaks out, her mother must race to reach her before the flames do.