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.
Unfortunately the movie Forgotten Miracle is not yet available on HBO Max.
| Directing | Andrey Kolpin | Director |
| Writing | Evgeny Golovin | Screenplay |
| Writing | Maria Parfenova | Screenplay |
| Production | Anton Smetankin | Producer |
| Production | Tatyana Tsyvareva | Producer |
| Production | Darya Krokhina | Producer |
| Writing | Evgeny Golovin | Creative Producer |
| Production | Marianna Galstukhova-Smetankina | Executive Producer |
| Writing | Maria Parfenova | Idea |
| Writing | Evgeny Golovin | Idea |
| Writing | Oleg Veselov | Screenplay |
| Sound | Sergey Bogolyubsky | Original Music Composer |
| Sound | Alexander Billion | Original Music Composer |
| Art | Alena Romashkina | Production Design |
