When Charlie Hall encounters an eccentric older woman named Avis Dauphin her life is turned upside down. Avis is convinced that Charlie is an alien life form sent to Earth to record a pivotal event in Human history. Is Avis crazy or does she speak the truth? If so, what is Charlie here on Earth to record?

Somm takes the viewer on a humorous, emotional and illuminating look into the mysterious world of the Court of Master Sommeliers and their massively intimidating Master Sommelier Exam.