A solar eclipse activates a magic time portal, and a regular schoolboy Vit'ko from the 21st century goes a thousand years back in time. It doesn’t take Vitya long to recognize the legendary bogatyrs in young Oleshko, powerful Ilya and severe Dobrynya. Their life passes in fighting cumans who try to destroy Rusichi at any cost, using both weapons and black magic. Vitya finds himself in the very midst of incredible events, battles with mythical creatures and acquires real courage.
Unfortunately the movie The Stronghold is not yet available on HBO Max.
| Writing | Yaroslav Voytseshek | Screenplay |
| Production | Yurii Prylypko | Producer |
| Crew | Oleksandr Suvorov | Special Effects Coordinator |
| Editing | Viktor Onysko | Editor |
| Directing | Yuriy Kovalyov | Director |
| Writing | Yuriy Kovalyov | Writer |
| Writing | Oleksandr Dermanskyi | Writer |
| Editing | Dmytro Vasylenko | Colorist |
| Visual Effects | Nikita Lopatnikov | Digital Compositor |
| Visual Effects | Vladyslav Driuchyn | Digital Compositor |
| Costume & Make-Up | Antonina Belinska | Costume Designer |
