Partner is an action romantic drama. The movie follows the story of two friends, named Johnny and Ronnie, who live in Delhi. Ronnie aspires to be a police officer, while Johnny dreams big and wishes to go to Mumbai to make quick money. Johnny leaves for Mumbai, and gets drawn into the underworld, and joins the gang of Tiger there. He helps Tiger to spread his drug business in every nook of the city. However, when he falls in love with Shaila, he realises the ills of his lifestyle, and decides to mend his ways and live life of honesty, but his past comes haunting him and Tiger sends his men to make it difficult for Johnny to live crime free, rather convince him to join Tiger’s gang again. Johnny decides to join hands with his old friend Ronnie and teach Tiger a lesson by completely destroying his den; however, it is yet to be found whether the two friends succeed in their mission?