Hey Bro is a film that depicts the journey of the very cute, innocent and loveable Gopi (Ganesh Acharya) from a small village in Rajasthan to Mumbai in search of his twin brother (Maninder) and mother (Indrani) separated from him at birth. He doesn't have an address or any picture of his brother and mother, but to fulfil his dadaji's (Prem Chopra) wish, he leaves the village in their search with his own picture naively believing that his brother would look just like him as twins always do becausehe had seen that in a lot of movies.
The hunt for his brother lands the bhola Gopi, in a lot of crazy situations, the wrong side of law as well as a law breaker land mafia don Baba(Hanif Hilal). How Gopigets out of those situations, escapes from the clutches of the Baba andfinds his brother SHIV and mother, plays cupid between his brother and the beautiful and sexy Anjali (Nupur Sharma) and finally re-unites the entire family forms the rest of the film.