Guru, Patta, Dhana, Parthi, and Seenu are five childhood friends. Their main aim is to join the fire service and save lives. Until they get their jobs, they go around places putting off fires and saving lives by themselves. Their actions are praised by everyone, including the zonal fire officer Narayanamoorthy, who promises them that they will get their jobs if they write and pass the exam that is needed for them to join the fire service. The night before the exam, an injured Dhana meets his friends. He tells them that while he was coming back home after seeing his sister, he was stopped by a man named Sadha and his friend. Sadha repeatedly assaults Dhana and tells his friend that he is an unstoppable don. Sadha slaps Dhana, and Dhana pushes him away and escapes. The other friends later go to the place where the incident happened in order to teach Sadha a lesson. To their shock, they see Sadha dead. It is revealed that when Dhana pushed Sadha, Sadha hit a rock and succumbed to his injury. It is also revealed that he was the right hand of "Puliyanthope" Ravi, the city's most feared don. The friends seek help from MLA Kabali, the area counsellor and a well-wisher of Guru. Kabali tells them that Ravi will definitely come to them to avenge Sadha's death and that he cannot help them as Ravi is too powerful for him. Guru suggests that the friends finish off Ravi, so the friends decide to kidnap him. The friends later visit Sadha's burial place, where all the Chennai dons have assembled. Guru tells his friends that once Ravi goes away, they will kidnap him. At the site, Ravi asked Sadha's friend, who was drinking when the incident happened, only for him to not remember anything as he was drunk. Ravi then kills Sadha's friend, and Guru is relieved since the only evidence against the friends is Sadha's dead friend. However, Guru then gets a call from two of his friends, who were hiding in another place. They tell him that they have kidnapped Ravi. Ravi actually does not know who kidnapped him, so the friends release him. However, Ravi is, in fact, keen on finding the man who kidnapped him and killed Sadha. He then catches Kabali, who tells him everything. The friends are tracked down by Ravi. Guru later engages in a fight with Ravi and his henchmen, where he defeats his henchmen but spares Ravi. Guru tells Ravi that Sadha's death was an accident, but Ravi still has vengeance and threatens to kill Guru's loved ones. Some days later, Guru's father Manikkam is killed. Guru suspects that it was Ravi but finds him and his henchmen dead. Suddenly, Guru gets a call saying that his friends and girlfriend Vasumathi have been kidnapped, and he must come to a location if he wants to see them alive. There, it is revealed that the person behind the murders is Annam, Sadha's transgender wife who has been trying to avenge his death. She approaches Ravi, but he refuses to help her, so she kills him and then Manikkam. Sadha had loved Annam despite her being a transgender. Annam thinks that Guru shattered her life, so she decides to kill Vasumathi. However, Dhana escapes and pushes Annam into a pyre, which was burning. Guru saves Vasumathi, his friends, and also Annam. Guru states that he will never let someone get killed by fire. He also apologizes to Annam, saying that Sadha's death was an accident. Annam gets moved by his gesture and forgives him. Guru then leaves the place with his friends and girlfriend. Later, the five friends write the exam, succeed in passing it, join the fire service, and rush to a spot to save people.
The title of the film was taken from the popular song from Rajinikanth's Kabali, with the team feeling that Vikram Prabhu's character as a firefighter and a Rajinikanth fan meant that the title would be apt. The film began production on 11 July 2016 at Old Mahabalipuram Road. Few scenes of the film were shot at SRM University, Kattankulathur, Chennai. This movie deals with the complete life of fire brigades.
