Fourteen-year-old Pavel, alias Pako, falls into an underground tunnel during an expedition near Lukov Castle, injures his spine, and is confined to a wheelchair. After several months of rehabilitation, he and his mother Věra find it difficult to accept that he will never walk again. Local castle warden Jaromír also has his own problems to deal with in Lukov, as he struggles with grief over the death of his beloved wife. Lukov mayor Karel Zlejšek and his wife Naďa refuse to admit that their relationship is not developing as they had imagined and that this is affecting their son Petr's behavior. Adam and Eva's marriage is also going through a crisis, but so far they have managed to hide it from their children Aničkou and Tadeáš, or Nyny and Dydyn. Tokár arrives in the village with his daughters Dragica and Štěpánka – Šmudla – and tries to fit into everyday life in Lukov.

Vera has lived a wonderful life with Jindrich, and she is fully determined to fulfill his last wish - running a marathon. The emancipated and spirited mother of three daughters doesn't think that doing so will be a problem. She and her daughters will split up the route into four parts, and they'll overcome the over 42-kilometer-long challenge as a family relay team. Of course, the fact that neither of them has ever ran even a meter poses no problem.