Based on the keywords in your request, you are referring to the 2010 action thriller film "Unstoppable" starring Denzel Washington and Chris Pine. The mention of "dual audio" and "repack" refers to file formats for downloading the movie, but the core of your request is the story of the film.
Here is the story summary of Unstoppable (2010):
Frank and Will decide to take matters into their own hands. They uncouple their own cargo to lighten their engine and reverse direction to chase the runaway train from behind. unstoppable 2010 dual audio hindi org 51 www repack
The climax involves a daring and dangerous plan:
The film is inspired by true events. It takes place in Pennsylvania and follows two railroad engineers who work for the Allegheny and West Virginia Railroad (AWVR). Based on the keywords in your request, you
Frank Barnes (Denzel Washington) is a veteran engineer with 28 years of experience who is being phased out in favor of younger, cheaper employees. Will Colson (Chris Pine) is a young, inexperienced conductor who is the new replacement. There is immediate tension between the two; Frank resents Will for taking jobs from older workers, and Will is dealing with personal issues, including a restraining order from his wife.
Meanwhile, at a rail yard in the north, a negligent hostler named Dewey makes a critical error. He leaves the throttle of a massive freight train (locomotive #777) in high gear while he hops out to switch a track. The train slowly pulls away without him, transforming into a massive, speeding missile carrying highly toxic molten phenol. They catch up to the runaway train
As the "ghost train" accelerates toward populated areas ("Stanton"), the company executives attempt to stop it, but their plans fail one by one:
Frank and Will, initially on a routine run in the opposite direction on a siding track, realize the gravity of the situation. They also learn that the company plans to let the train derail in a residential area to save money on lawsuits, which would kill thousands of people.