Oru Second Class Yathra is a comedy thriller where Vineeth Sreenivasan and Chemban Vinod play thieves, while Sreejith Ravi and Joju George play the roles of police officers. The film is set on the journey of these four in the train from Kannur Central Jail to Thiruvananthapuram.
Three friends decide to hire a prostitute on the day of the Aatukaal Pongala - a Hindu festival in Trivandrum - when their wives are busy.