Desperately proud, but reduced to poverty by the loss of their farm, the Joads pile their few possessions on a battered old truck and head west for California, hoping to find work and a better life. Led by the indomitable Ma Joad, who is determined to keep the family together at any cost, and by the volatile young Tom Joad, an ex-convict who grows increasingly impatient with the intolerance and exploitation that they encounter on their trek, the Joads must deal with death and terrible deprivation before reaching their destination—where their waning hopes are dealt a final blow by the stark realities of the Great Depression.