Kaala Patthar (1979)

Being branded a coward for abandoning his ship full of over 300 passengers. Captain Vijay Pal Singh, is discharged from duty, humiliated by society and disowned by his parents. Feeling guilty over his cowardice and with low self-esteem, he starts working as a coal miner to forget his past. But it still continues to hunt him, he welcome pain as a punishment. The owner of the mine is Dhanraj Puri, a carefree and irresponsible man whose mine is poorly equipped, with less than sufficient medical supplies, and no facilities for the miners and their families. Vijay trys to save every workers life in order to overcome his haunted past but to no avil. But one day water forced itself in one of the mining tunnels, endangering the lives of over 400 workers. Vijay along with some of his other colleagues put up a big fight to save each and every workers life. Which at last was successful and Vijay was able to overcome his troubled past.