What does it take to make the perfect cup of coffee? Four passionate National Barista Champions from the United States (Kyle Ramage), Ireland (Niall Wynn), Germany (Chloe J. Nattrass), and Japan (Miki Suzuki) represent their countries and their craft in an attempt to win the World Barista Championship in Seoul, South Korea. The film places particular emphasis on the Japanese Champion, Miki Suzuki, as she attempts to become the first female World Barista Champion in history.