Samar Anand, a hard working young immigrant in the city of London, glimpses upon the love of his life, a gorgeous angelic looking girl, (Katrina Kaif). They meet and their bond blossoms into love with time spent together. Samar however meets with a serious accident, and Meera vows to God she will leave Samar forever if he allowed him to live again, their love affair ends as quickly as it began. Samar angered with God and fueled with his love for Meera, declares War against Him. Samar Anand vows to walk into the jaws of death everyday as a challenge to God to keep him alive. He becomes Major Samar Anand in the Indian Army, a bomb disposal chief, defusing bombs without ever wearing a bomb suit. It is here that Major Samar also known as 'the man who cannot die' meets Akira (Anushka Sharma), a spirited vibrant, 'today's generation' Discovery Channel correspondent with a WTF attitude. Aware of Samar Anand's story, Akira is determined to unravel the mystery of love in this intriguing story, whilst herself falling hopelessly in love with Samar. Is Akira able to unravel the mysteries of love, does Samar win the battle or then does God surrender to his love?