Sham and Joe left their village to work in KL. Joe works as a uber driver and Sham works as a sales executive. One day, the two guys are shocked to find a baby in Joe’s car. They tried to locate the parents but to no avail. When they encounter many good things since the baby came to their lives, they decided to keep the baby for a few more days before handing him over to the police. Are they capable to look after the baby with no experience ? Will the baby be returned to his parents ?

“Baby Bro” mengisahkan tentang kehidupan seharian dua orang pemuda, Joe (Shaheizy Sam) & Sham (Zizan Razak), yang mencari rezeki dengan cara tersendiri di kota Kuala Lumpur. Kehidupan mereka berubah serta-merta dengan kehadiran seorang bayi yang tidak diketahui dari mana asalnya. Usaha untuk memulangkan semula bayi tersebut menemui jalan buntu sehingga mereka akhirnya terpaksa membuat keputusan untuk menjaga bayi itu buat sementara waktu.