Arush Mehra (Akshay Kumar) lives a fairly wealthy lifestyle in Sydney, Australia along with two room-mates Tanmay Joglekar(Ritesh Deshmukh), and Ali Haider(Fardeen Khan) . He works for a popular dance club. All three are womanizers and usually end up sleeping with different women. One day they find a baby girl right outside their door with a note that tells them to take care of her, since she is the daughter of one of them. The three boys go to all the girls they dated and slept with, and none of them claim that this baby girl is theirs. The boys try to take care of the baby, but she becomes a huge pain, so they drop her off at a church. A huge rainstorm occurs, and the baby is caught in the rain and develops a very serious illness. The three guys stay with the baby in the hospital as she recovers, all the while realizing how much they love her. She recovers, and the guys become changed men. They love her, pamper her, and grow a huge attachment towards her. One day, a girl, named Isha (Vidya Balan) , comes to take Angel back, claiming her to be her daughter. The boys are shocked, but that's when Arush tells them about his past.