1197. King Kaloyan ascends the throne in hard times for Bulgaria. The country is still recovering from a century of Byzantine subjugation. He is forced to carry out a very flexible foreign policy in order to strength his positions. Pope Innocent III recognizes him as Emperor (Tsar), but a little later the fourth Crusade crosses the country under Emperor Baldwin. A new conflict is coming. Tsar Kaloyan wages the decisive battle at Adrianople and wins.

The Soviet army is approaching the Bulgarian border. Many government ministers and army officers prepare to flee the country. The partisans take over the key administrative buildings. At the War Ministry, the commander of the armored brigade Major Essev hesitates between his sense of honor as an officer and his patriotic duty. He takes the side of the partisans.

Hitar Petar escapes every hard time the life gives him by using his quick mind.

The university student Bobchev joins a youth brigade. The commander's council entrust Bobchev with a literacy course for members of the brigade. Velizarov and Monkata arrive in the camp to carry out sabotage. They place explosives on the dam, and attempt to win Bobchev over by means of intrigue. There is a storm: the camp is put on the alert. Everyone joins the rescue work at the dam. After a long struggle with Velizarov, Bobchev cuts the burning fuse of the explosive. The dam does not yield to the pressure of the flood. Everymen sing in Jubilation.

During the 1800s, Peru's government sends 2 envoys to negotiate peace with the rebellious Incas but a treasure-hunter bandit shoots the Inca ruler and his son, leaving the 2 envoys to take the blame for it.

A promising but hot-headed young. boxer studies with a kind, knowing manager, grooming him for the Olympics.

Members of a partisan underground unit struggle during the anti-fascist Bulgarian Resistance of World War II.

The teenager was admitted to a specialized school for children with lung diseases. The teacher deliberately opposes the newcomer to the present time leader. This causes tension among children. The conflict worsens when a new boy tries to gain the trust of the collective by dishonest means.