R… Rajkumar is a musical action romantic drama that revolves around Romeo Rajkumar (Shahid Kapoor), an aimless youth who lives in a small town Dhartipur. Romeo starts working for Shivraj Gurjar (Sonu Sood), the drug lord, who rules Dhartipur. Problem ensues when Shivraj and Romeo fall for the same girl Chanda (Sonakshi Sinha). Shivraj and Romeo turn against each other and a war begins between the two to win Chanda.