Kaala Patthar (1979)

Captain Vijay Pal Singh is branded a coward, disgraced, humiliated by society and disowned by his parents for abandoning his ship risking the lives of over 300 passengers. With guilt on his mind and low self-esteem Vijay takes up work as a miner in a coal mine owned by Dhanraj Puri. Puri is a self-senile man who thinks about himself, by endangering the lives of his workers to profit himself and with no benefits or medical facilities for them. Vijay attempts to get rid of his cowardice by saving the lives of his co-workers by the contended wrath of Puri. The same happens when water forces its way into one of the mining tunnel endangering the lives of hundreds of workers; this time Vijay hopes to make it big so that he can be able to put together his life again.