The movie revolves around Prem (played by Salman Khan), a young man who falls in love with a beautiful and innocent girl named Sonakshi (played by Sonakshi Sinha). However, their love story takes a dramatic turn when Prem's past comes back to haunt him. He pretends to be his own lookalike, Avinash, to protect his loved one from his past. The film explores themes of love, sacrifice, and the power of true love.