Three schoolchildren accidentally find a magical portal in the Holy Trinity St. Sergius Lavra and are carried away into the past. Now their goal is to return home, and for this they need to go through the wonderful forest of the XIV century during the Tatar-Mongol yoke and the Battle of Kulikovo. St. Sergius of Radonezh will help the teenagers.
| Actor | Role |
|---|---|
 Prokhor ChekhovskoyNot listed | Not listed |
 Anna KhilkevichNot listed | Not listed |
 Daniil EldarovNot listed | Not listed |
 Vladimir VoytyukNot listed | Not listed |
 Diomid VinogradovNot listed | Not listed |
| SStepan DerevyankinNot listed | Not listed |
| SSergey SergeevNot listed | Not listed |
| AAnton SavenkovNot listed | Not listed |
| SSvetlana NovikovaNot listed | Not listed |