Brittany Forgler is a funny, likeable, 27-year-old hot mess of a New Yorker whose late-night adventures and early-morning walks-of-shame make her late for work every day. But when she stops by a Yelp-recommended doctor’s office in an attempt to score Adderall, Brittany gets handed a series of diagnoses instead—elevated heart rate, high blood pressure … the list goes on. Suddenly forced to get a grip, Brittany laces up her Converse sneakers and runs one sweaty block. The next day, she runs two. Soon she runs a mile. Feeling inspired, Brittany sets her sights on the New York City Marathon. This lifelong partier finally has direction, but is she on the right path?