Henry Higgins bets Colonel Pickering that he can turn Eliza Doolittle, a flower girl, into a duchess in six months. After dealing with her for a short while, they both agree it will be a tough task.
After successfully "passing off" the flower girl as a duchess, Higgins wins the bet, but Eliza is left angry and dissatisfied.
Eliza runs away from Higgins; they meet again and argue once more before she says goodbye for what she thinks is the last time. Higgins thinks otherwise.