Anthracite. The Day of Resilience.

Oleksiy is an ordinary mining worker who loses a close friend in a mine accident. He is plagued by remorse and guilt. One day, during a celebration, the miners take a photo together, the camera flash lights up Oleksiy's eyes, and when he opens them, he finds himself in the past. The miner begins to travel through time and interfere in events with the intention of changing the course of history.