Will a talking teddy prove to be Man’s best friend? Witness a bizarre exchange between a loner and a toy bear as they solve medical mysteries against all odds.

The film starts with Inspector Manimaran (Vinoth Munna) taking the job of Don Junga’s (Vijay Sethupathi) encounter, along with Duraisingam (Rajendran). On the way to his encounter, Junga tells his story. Back in Pollachi, he works as a bus conductor and is in love with Thoppuli (Madonna Sebastian). He gets involved in a fight, which angers his mother (Saranya Ponvannan) as his father Ranga and grandfather Linga were dons. They also lost their theatre Cinema Paradise and had to sell it to Kumarasamy Chettiyaar (Suresh Chandra Menon). So his mother fears he will also become a don. Junga tells his mother he will not be a don and will retrieve their ownership of the theatre. He goes to Chennai with Yo Yo (Yogi Babu) and starts saving money towards his goal. He also leaves Thoppuli as she wants him to give her a luxurious life and gift her with 365 sarees for each day of the year. One day, Junga comes to know that the theatre is being brought down and Chettiyaar is planning to sell it to a foreign company. He goes to Chettiyaar’s house and gives him a crore to buy back his theatre, but Chettiyaar insults him. Junga challenges Chettiyaar that he will retrieve back his theatre. He decides to kidnap Chettiyaar’s daughter Yazhini (Sayyeshaa), who is in Paris, so he goes there with Yo Yo, but the Italian mafia group kidnaps Yazhini to release their leader, who was arrested by the French police. Junga tells Chettiyaar he has kidnapped Yazhini and fights with the mafia group to rescue her from them. Yazhini and Junga escape, and Chettiyaar agrees to give Junga’s family the theatre in exchange for Yazhini. Yazhini and Junga later get married.

Gunasingam, a family-loving farmer who hails from a small town, tries his best to keep his big family united despite him being misunderstood by many.

A cruel businessman attacks a tribal village for a stone that the people treat as something special. A guy who thinks he is somehow related to the stone comes to their aid.

Rajinikanth (Arya) was born in a theatre screening Dharmathin Thalaivan, and like one of Rajinikanth’s characters in that film, has a forgetful nature. The film doffs its hat at the older film by introducing its protagonist in underwear as he has forgotten to wear pants. This condition of Rajini is a constant source of embarrassment to his parents Ramanathan (Aadukalam Naren) and Lakshmi (Uma Padmanabhan), as they cannot find a suitable match for him. One prospective girl’s father Sathyamoorthy (Sampath Raj) insults Rajini because of this. As fate would have it, Rajini ends up falling in love with Sathyamoorthy’s daughter Vandhana (Sayyeshaa), but she is unaware of his forgetfulness. How long can he continue with this facade, especially with Ajay (Lijeesh), a cop who wants to marry Vandhana and is trying to expose him?

A reputed college that is now on the verge of closing due to the privatization of the education system and political reasons. The college Principal fights against privatization and the protagonist supports his vision.