British character actor Lionel Jeffries both directed The Railway Children and adapted its screenplay from the novel by E. Nesbit. Dinah Sheridan plays the mother of three children who must live in reduced circumstances when her husband (Ian Cuthbertson), a government official, is arrested on a false charge of treason. The kids adapt rather well to their new environment, a community located on the edges of a railway. They befriend a kindly porter (Bernard Cribbins) and a wealthy gent (William Mervyn), both of whom strive to prove their father's innocence.