Zhenya faces an extremely dangerous task: to destroy the enemy ammunition and fuel station. Meanwhile, her best friend is demoted and faces a tribunal.

Zhenya asks Marina Raskova to intercede for Galya. Raskova gives the order to release Shevchenko from the tribunal and reinstate her as navigator under the command of Zvonareva.

A Soviet intelligence officer flees from the German camp with secret documents containing information regarding plans for fortifying and mining the entire enemy front.

Command receives information about a secret facility at which chemical weapons are being tested. Aerial reconnaissance attempts to obtain information about a secret object and find a weak point in the German line of encirclement.

Makeev's group rescues a captured soldier from the chemical weapons testing area. He was among the test subjects and was able to survive thanks to a stolen protective mask.

The scouts and pilots who distinguished themselves during the operation are sent to the capital to be presented for awards. Meanwhile, German saboteurs prepare an operation to eliminate them.