The Railway Children recap

When their father is suddenly taken away, Bobbie, Peter, and Phyllis leave London with their mother for a modest cottage called Three Chimneys. The nearby railway becomes the center of their new life. They befriend the porter Perks and an Old Gentleman who rides the morning train, help a Russian exile find his family, and prevent a passenger train from striking a landslide. They also organize a birthday surprise for Perks and rescue an injured schoolboy from a tunnel. Bobbie eventually learns that Father has been imprisoned on a false charge of betraying state secrets. The rescued boy's grandfather is the Old Gentleman, and Bobbie entrusts the family secret to him. His inquiries clear Father, who returns by train and is reunited with his family at Three Chimneys.

Roberta, known as Bobbie, lives in London with her younger brother Peter, her sister Phyllis, and their affectionate parents. Their secure life breaks apart when two men arrive after an argument involving Father's government work and take him away. Mother will only say that he has been called away on business. Soon afterward she dismisses the servants and moves the children to Three Chimneys, a small country house near a railway. The family must live carefully while Mother earns money by writing. The children explore the line and station, where Peter's attempt to take coal for the cold cottage brings him before the stationmaster. He admits what he did and learns that being poor does not make the railway's coal theirs. The children begin to know the porter Perks and find that trains offer both companionship and a link to the life they have lost.

The children make a daily custom of waving to an Old Gentleman on the morning train, imagining that their greeting can carry their love toward Father. When Mother becomes ill, they paint a message asking the gentleman to watch for them at the station and send him a letter requesting the food and medicine she needs. He responds generously, and Mother recovers, though she makes the children understand that they should not ask strangers for things without consulting her. Further adventures around the engines and station deepen the children's connection with the railway staff while also teaching them to respect the rules and responsibilities that keep the line running.

At the station the children find Szczepansky, a Russian exile who is frightened, exhausted, and unable to make himself understood. Mother recognizes enough of his language and story to bring him home. He was punished for writing about the suffering of poor people and has become separated from his wife and child. The Old Gentleman uses his resources to trace the missing family, allowing Szczepansky to leave in hope of reunion. Later, a landslide leaves rocks and trees across the railway. Bobbie, Peter, and Phyllis tear red cloth into flags and stand on the line to stop an approaching train. Their warning averts a disaster, and the railway company publicly honors them, though the children regard the rescue as simply what anyone should have done.

The children help extinguish a fire on a canal boat and become further woven into the neighborhood around the railway. Learning that Perks never celebrates his birthday because he cannot afford it, they collect small gifts from local families and bring the assembled parcels to his home. Perks initially believes the presents are charity and angrily refuses them. Bobbie explains that the neighbors contributed because they value him, not because they pity him, and he accepts the celebration after the misunderstanding is cleared up. The episode teaches the children that kindness must respect the recipient's dignity as well as meet a need.

Bobbie finds an old newspaper report revealing the secret Mother has tried to keep from the children: Father was convicted of passing state secrets to another country and sent to prison. Mother says he is innocent but asks Bobbie not to burden Peter and Phyllis with the knowledge. Bobbie carries the fear alone. During a schoolboys' paper chase, the children notice that a runner in a red jersey enters the railway tunnel but does not come out. They search inside and find Jim with an injured leg. Working in the darkness and danger of the tunnel, they keep him safe and summon help rather than leaving him behind.

Jim is taken to Three Chimneys to recover, and his grandfather turns out to be the same Old Gentleman whom the children have greeted from the train. Trusting his kindness and influence, Bobbie tells him about Father's conviction and Mother's certainty that he was framed. He promises to look into the case. His investigation succeeds in proving Father's innocence. The railway staff and neighbors quietly prepare for his return, while Mother allows Bobbie to meet the news at the station. When the train arrives, Bobbie sees Father step onto the platform, newly released and cleared. She accompanies him back to Three Chimneys, where Mother, Peter, and Phyllis complete the family reunion.

After Jim is carried to Three Chimneys with an injured leg, his grandfather proves to be the Old Gentleman from the train. Bobbie privately tells him that she has discovered the truth about Father: he was convicted of selling state secrets, though the family believes him innocent. The Old Gentleman investigates the case and helps establish that Father was framed. One morning the railway staff and villagers behave as if they are expecting good news, but Mother lets Bobbie discover it in her own way. Bobbie goes alone to the station and sees Father step from the train after his release. She runs with him to Three Chimneys, where the family is reunited. The children's repeated kindnesses around the railway have thus brought them the friend able to correct the injustice that separated their family.