Sangram Bhalerao, nicknamed Simmba, is an orphan from Shivgad who witnesses
police corruption early in life and decides that wearing the uniform is the ultimate ticket to wealth and power. Growing up, Simmba becomes a fiercely corrupt police inspector who takes bribes with a cheerful smile and unapologetically aligns himself with Durva Ranade, a ruthless local mafia don. Simmba’s primary motivation is money, luxury, and climbing the social ladder, caring little about justice or the plight of ordinary citizens.Transferred to a new precinct, Simmba crosses paths with Shagun, a kind-hearted veterinarian, and enthusiastically adopts her younger step-sister, Aakru, along with her orphan friends, affectionately viewing them as his surrogate family. Despite his corrupt nature, Simmba develops a genuine, deeply protective brotherly affection for Aakru and her friends, which softens his hard edges. Aakru and Shagun slowly challenge Simmba’s moral compass, urging him to see the dignity of his badge.Simmba’s comfortable arrangement with the Ranade syndicate shatters when Durva’s arrogant, violent younger brothers, Kartavya and Ranveer, run amok. Aakru stumbles upon their horrific drug-running and human-trafficking operations. Enraged and terrified of exposure, the brothers brutally assault, murder, and hang Aakru and Shagun from a bridge, staging it to look like suicide. Devastated and consumed by monumental guilt, Simmba transforms overnight. The charismatic, greedy rogue is replaced by a man bent on absolute vengeance and true justice.Simmba attempts to arrest the culprits legally, but the powerful Ranade syndicate uses intimidation and corruption to corrupt the judicial process, freeing the murderers. Realizing that the systemic law cannot protect the innocent, Simmba decides to take matters into his own hands. Aided by his loyal police subordinates, Simmba stages an encounter. He confronts the villains at the very spot where Aakru was killed, engineering a confrontation where the brothers attempt to flee and are justifiably shot down by police fire.The climax explores the aftermath, where Simmba faces an inquiry board for extrajudicial killings. Instead of cowering, Simmba delivers a passionate, soul-stirring monologue about the systemic failures of the legal system in protecting women and children, prompting the
police commissioner and the board to sympathize with his cause. Cleared of wrongdoing, Simmba returns to his duties, fundamentally transformed from a self-serving, corrupt opportunist into a righteous, empathetic protector of the innocent, dedicated to keeping his city safe and honoring the memory of his beloved sister.