BHOLAA is the story of one crazy night involving drugs, gangsters and a father dying to meet his daughter. ACP Diana (Tabu) fights a gang of thieves and confiscates 900 kgs of drugs from them, worth Rs. 1,000 crores. She hides the drugs in the basement of the sprawling Lalganj Police Station. At night, she attends the retirement party of I G Jayant Malik (Kiran Kumar). In a strange turn of events, all the 50 cops at the party faint one by one after drinking the spiked drink.
Diana, who was injured, didn’t consume alcohol and she’s the only one on her feet. Her undercover cop Bhoora (Arpit Ranka) informs her that Ashwathama aka Ashu (Deepak Dobriyal), whose drugs she has confiscated, is determined to finish off the cops. He’s also all set to take back his drugs consignment. Diana has only one choice – ask Bholaa (Ajay Devgn) to help her ferry the unconscious cops to the hospital before they die. Bholaa has just got released from jail after 10 years.
He is all set to go to an orphanage to meet his daughter Jyoti (Hirva Trivedi) whom he has never seen before. Diana, however, spoils his plan as she asks him for help. Bholaa agrees when she promises to secure Jyoti’s future in return for his services. The truck journey begins. Sadly, Ashu and his gang put several roadblocks in the 80-kilometer-long journey. What happens next forms the rest of the film