Police constables Balagopal and Jolly Kurien have been at odds for years but are under orders to transfer two prisoners from Kannur to Trivandrum. They board the Parasuram express with the handcuffed inmates. While at the Kayamkulam station, prisoner Nandu escapes. The two officers get off the train at the next stop with second inmate Maran and frantically searches for Nandu. The three unlikely musketeers finds the back-story of Nandu. Nandu's father, Narayanan always have a wrongful intention to his step-sister, Lakshmi. Nandu, one day determines to kill his father for the same, but the trap he set accidentally killed his mother. He was arrested for his mother's murder. One day his father Narayanan comes to visit him at jail and reveals his true intentions for his step-sister. Nandu determines to escape at any possible opportunities. The three musketeers finds Nandu while roughing with Narayanan, both with the intention to kill. Accidentally Jolly Kurien kills Nandu's father. With knowing Narayanan's story, Maran devises a plan to not let the issue known to others, to which everyone agrees. Narayanan's body is buried in a nearby church cemetery at that night itself. In the end of the day everyone is shown as happy in their karmic lives.
The film met expectations. The Times of India wrote that the film "has a promising premise, but ends up being just half of what it aspires to be." Now Running said that the film was neither damaging or offensive. Most of the film's scenes were shot inside a train and they gave it a road movie feel. The story starts when the train is in northern Kerala and ends in southern Kerala. The passengers on the train are shown as they affect the story. International Business Times wrote that the film "fails to come out as a comedysuspense thriller as it was supposed to be". The directors, Jexon Antony and Rejis Antony, adopted a flash-back narrative, but "unfortunately the suspense elements went amiss, especially in the second half." The first portion of the film offered promises which failed during its second half. Indiaglitz noted that the slow story failed to meet the expectations of a thriller film. The first half of the film was alright, but the narrative flagging in the second half. It was felt that directors Jexson and Rejis Anthony did "okay on their first outing and a more polished movie is expected from them in future." The project's cinematography by Vinod Illampally was praised. Since thrillers require a greater punching up during post-production, "the editing seems a bit lax." The background score was fine, but in considering Gopi Sunder's body of work, it could have been better. They summarized, writing the film
has a novel theme, yet the execution could have been better. A bit more taut and crisp, with its first half- like narration in the second half too could have taken the movie far ahead. It is not a bad attempt and is very much a family movie and the subject of rape of a different nature is very relevant. Watch it without much expectation and you might be pleasantly surprised"
The Hindu felt writer/directors Jexson Antony and Rejis Antony tried to strike a proper balance between drama and comedy—juggling between the two modes would not wear down the audience. The Hindu felt this became evident in the film's second half, "where a scene of high tension and tragedy in the flashback cuts abruptly to a light-hearted one happening in the present." It was however, concluded that "Barring a few humorous scenes, Oru Second Class Yathra does not make for a pleasant trip to the cinema."
