The 33

Based on the real-life event, when a gold and copper mine collapses, it traps 33 miners underground for 69 days.

Dozens of people from Copiapó, Chile, work in the San José mine. The owner ignores the warnings of the failing stability of the mine, which collapses a short time later. The only path inside the mine is completely blocked, and the thirty-three miners manage to get to the rescue chamber. They discover that the radio is useless, the medical kit is empty, the ventilation shafts lack the required ladders, and there is very little stored food. Mario Sepúlveda becomes the leader of the miners, dividing the foods rations and stopping the outbursts of violence and despair. The mine company does not attempt any rescue, and the relatives of the miners gather around the gates.

The government of Chile decides on active intervention, and orders the use of drills to reach the chamber. The first exploratory boreholes move off-target, but a later one reaches the required destination. The miners attach a note to the drill bit to announce their survival. They receive new food and clothing, and television communication with the surface. A second, bigger, drill system is prepared to retrieve the miners one by one.