Sixth graders Art, Vic, Phil, and Kira find a laptop with an unusual adventure game, «Heroes of Envell». The laptop unveils a secret portal to enter the game world.
Four sorceresses from the Fairy Patrol — Varya, Snezhka, Alyonka and Masha — take on a new investigation: A magical artifact, an electric guitar, has been stolen from brutal dwarf rockers. Their sworn enemies, the forest elves, immediately fall under suspicion. The case takes a new turn when a powerful third force intervenes in the investigation.
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.
