Hungry to finish his detective life and haunted by dark, fragmented memories of his past, Dude uses his sleuthing skills to outsmart the suspects. All set to investigate the last case of his detective life, he somehow ends up battling between his personal and professional life.

As the investigation intensifies, Dude unearths the dark secrets about the suspects. He teams up to discover the hidden truths surrounding the case. The tension mounts as he gets closer to solving the mystery followed by an odd chain of events that unfolds his past escapades.

As Dude’s suspicion on Mrs. Pal intensifies & Mr. Pal withdraws his case from investigation, Dude is further intrigued to prove the false case & plans to help Mr. Kumar against Pawa ji’s will. As Dude’s farewell comes closer, its nail biting to find out if he unravels the mystery in time.

After knowing about his mother’s past & Vishal Kaul’s suicide, Dude is driven to experience her mother’s emotional guilt to step into her mind. As the series comes to its season finale, Dude finds out Batra’s connection to the deal & comes up with a plan to unfold the truth.

As Dude and Bhatia are put on a new case, it looks like Dude has given up on the idea of following in his mother's footsteps. However, Inspector Kumar informs Dude that a body has been found that might be his mother. Dude sees the evidence and dismisses the notion that the body is hers. Back home, Dude's dad asks him about the body, but Dude dismisses him too, slowly slipping into denial.

Dude submits his DNA sample but believes that his mom is alive, and the earring found is just a clue. Bhatia distracts Dude by discussing the case. Dude reveals that Gautam and Amit were embezzling company money into the crypto wallet, and someone from the office stole that money. That someone turns out to be Vishal, the company's accountant.