It is the final weekend of summer and a group of Californian teenagers are looking forward to an upcoming surf contest. Rival gangs the 'Vals' and the 'Lowks' are confident that they will take home the trophy, but things become complicated when Reef Yorpin - leader of the Lawks - discovers his sister Allie has fallen in love with 'Val' surfer Nick after meeting at a beach party.

Ellie Mae lives on Primrose Hill with her good-hearted and fancy free mother, her drunken father, her younger sister and a mean-spirited grandmother. The Hill is not a good part of town, however. When she meets and falls for a hard-working man, they marry and she hides her past from him. When he discovers the truth it jeopardizes their marriage.

Indian aristocrat Rama Safti returns from medical training in the U.S. to give his life to the poor folk of Ranchipur. Lady Edwina and her drunken artist ex-lover Tom Ransome get in the way, but everyone shapes up when faced by earthquake, flooding, and plague.