Dhak Dhak is a road story about four ordinary women involving Sky (Fatima Sana Shaikh), a travel blogger, Mahi (Ratna Pathak Shah), Sky’s biker grandmother, Uzma (Dia Mirza), a biker mechanic and Manjari (Sanjana Sanghi), a first-time solo-travel who wants to explore her biker dream before getting married off. The four plan to undertake an extraordinary journey from Delhi to Khardungla Pass on their respective bikes to the world's highest motorable road in seven days. How the four women cross all hurdles to complete their first-ever life-changing journey forms the rest of the plot.