The 'Cocktail' girl Diana Penty is back and this time as 'Happy' who is on a run! 'Happy Bhag Jayegi' is a cross border romance which has three men (Abhay Deol, Ali Fazal and Jimmy Sheirgill) vying for Happy's attention but then the runaway bride has some other plans in store.
The trailer begins with Jimmy Sheirgill dancing to Sunny Deol's 'Yaara O Yaara' until he is told that his bride Happy (Diana Penty) has ran away from the marriage. Unknowingly Happy lands up at Bilal Siddiqui's (Abhay Deol) house in Pakistan. What follows next is a rib-tickling comedy of errors. But wait back home in India, Happy even has a forlorn lover (Ali Fazal). Who will steal away Happy's heart? The rest of the film revolves around this plot.