Big Daddy - World's Best Father tells the story of Jordy (Mohd Nazim), a wealthy young man raised by his uncle and living a carefree life in Punjab. When Jordy's sister Harleen (Ritu Sheorn), a single mother living in Australia with her 6-year-old son Sam (Sartaaj Kakkar), succumbs to cancer, he is forced to take care of his nephew Sam, whom he adores. Sam's father (Karan Battan) travels to India to claim his son and return him to Australia. When fate sends Jordy to Australia to meet Sam, he is confronted with tough familial realities and custody struggles that highlight the uncle-nephew relationship's path of love and bonding.
