A foreign agent, Sami Ameni, wants to find another agent, with whom he has collaborated during WWII, in order to blow up a factory.
After the foreign specialists leave, engineer Lulëzim is left in charge of building the Fierza Hydroelectric Power Station.
World War II. Italian fascists have interned in the South a lot of people who fought them on the 7th of April 1939 when they came to Albania. Among them, there's an old man whom they call "Daja" (uncle), who fought along with the youth.
