Director Tigmanshu Dhulia and the makers of 'Raag Desh' unveiled the trailer of the film on social media, which promises a hard-hitting tale of patriotism and nationalism.Starring Kunal Kapoor, Amit Sadh and Mohit Marwah in lead roles, the film traces the historic Red Fort trials that completely changed the phase of the Indian Independence Movement. Three army officers serving in the Subhas Chandra Bose-led Indian National Army are tried for waging war against the king. Further charges of murder and abetment of murder are also levelled against the three dignified officers. How they come clean from these charges, forms the crux of the film.While it is a delight to see Kunal Kapoor return to mainstream movies in top form after ages, do not miss Amit Sadh's faultless rendition as a Sikh officer. Mohit Marwah returns for his second film after a dismal debut with 'Fugly' that released in 2014. Will 'Raag Desh' turn the tables for him? Only time will tell. The film also features Vijay Verma of 'Pink' fame.Produced by Gurdeep Singh Sappal, the film has been directed by Tigmanshu Dhulia and is slated for release on July 28, 2017.Watch the trailer below.