"Among many stories of the Chernobyl disaster, this one is perhaps the most mythologized – the story of three engineers who ventured into the depths beneath Reactor 4 to open the valves and drain the steam bubbler pool. With help from the media, they were nicknamed "divers." We, however, decided to take a different approach, reach those people, and find the truth. What followed evolved from fact-checking into a massive investigation based on room layouts and hall plans, combined with old documents aiming to reconstruct their most likely route.
All this gives a completely different level of understanding of what that operation was and how exactly it was carried out. This is the story of three heroes."