Meet the trio - Adheer, an ace thief, Roshni, a history geek and Dev, a ganglord in Gurgaon. A renowned scientist, Kartik Devraj, aka KD, captures the three and warns that they'd be free only after the mission is completed. With KD's invention of the time machine, the trio is transported to 19th-century Bengal. Saving a widowed queen from committing sati, retrieving her priceless necklace, and returning to the future, the trio realise that this is just the beginning of their secret mission.