In the Salinas Valley in and around World War I, Cal Trask feels he must compete against overwhelming odds with his brother for the love of their father. Cal is frustrated at every turn, from his reaction to the war, how to get ahead in business and in life, and how to relate to his estranged mother.

East of Eden strains to swell its story to epic dimensions, but James Dean's riveting performance gives this CinemaScope drama much of its raging heart.

'East of Eden', the film adaptation of John Steinbeck's novel, presents significant differences from the original book. While the movie retains the core theme of sibling rivalry and the Cain and Abel allegory, it omits several crucial characters such as Lee and Samuel Hamilton. The film also alters key plot points and themes, notably the concept of "Timshel". Despite these changes, the performances, particularly James Dean's portrayal of Cal, are highly praised. The cinematography and direction by Elia Kazan are also commended for their quality. However, many reviewers feel the movie fails to capture the depth and complexity of Steinbeck's novel.