The chapter provides backstory on Gatsby's origins. He was born as James Gatz and came from a poor family. Through sheer determination, he worked hard physically and reinvented himself as the wealthy Jay Gatsby. The party at Gatsby's mansion is livelier than before, though Tom attends with Daisy this time. Gatsby's idealism and love for Daisy are revealed as he remains convinced that he can recapture the past with her.