Aakrosh revolves around a lower caste university student who, along with his two friends, goes to his hometown Jhanjhar. The three students go missing soon after. The government appoints CBI officers Siddhant (Akshaye Khanna) and Pratap (Ajay Devgn) to investigate the matter.
Investigating in Jhanjhar becomes a tough task for the officers as the local police, influenced by local bigwigs, refuse to co-operate with them. Besides, the officers cannot break the ice with the locals due to years of fear instilled in them. The effect of their investigation causes mayhem in Jhanjhar, with the wrongdoers spreading terror and killing people in broad daylight.