The four Newton brothers are a poor farmer family in the 1920s. One day, the oldest of them, Willis, realizes that there's no future in the fields and offers his brothers to become bank robbers. Soon the family agrees. They become very famous robbers and execute the greatest train robbery in American history five years later.

A lock factory worker Pertti would like to marry his girlfriend Verna, but fears they don't have enough money. His brother Martti is a member of a youth gang that is planning a robbery with three other young men. When the boys have to flee at the time of the robbery, Pertti who secretly shadowed them sees an opportunity to solve his money problem.

A con artist moves into a small town to spearhead a payroll robbery.

While four men blow up a safe, a night watchman is accidentally killed. They get away with the loot. Ten years later, the stepson of the dead night watchman receives vital information.