Love knows no bounds.

Major Samar Anand (played by Shahrukh Khan) is an expert in mine clearance and bomb disposal, maintaining a record for defusing bombs in the army. His daily work involves walking the line between life and death; despite facing danger with ease, he never wears protective gear. One day, he accidentally saves a girl named Akira Rai (played by Anushka Sharma), and the love story captured in her diary leaves her deeply fascinated with Samar. Using her position as an intern at the Discovery Channel, Akira begins a two-week project to document Samar's story and gradually becomes immersed in it. Years ago, Samar, a poor boy, encountered a wealthy girl named Meera Thapar (played by Katrina Kaif) in London while working as a street singer, enchanting her with his beautiful voice. Despite being engaged, Meera falls hopelessly in love with him. However, the devout Christian Meera prays to God that if Samar survives a car accident, they will never meet again. Survivor Samar loses his beloved Meera as a result, leading him to challenge God, asking either to take his life or bring Meera back to him. Thus, Samar returns to India and embarks on a perilous life in the military. In 2012, however, he returns to London for Akira's documentary, where he encounters another car accident that wipes his memory and brings Meera back into his life... This film is the last work of Yash Chopra, celebrated as the 'Father of Bollywood Romantic Films'.