Ruby is in the midst of the most boring day a person could possibly have in pre-quarantine America—sitting in a Target parking lot, sulking in the wake of a passive-aggressive phone call with her husband about skipping yoga so she can sign for a delivery—when her life suddenly changes. A text message pops up from someone named Billy: “RUN.” Fingers quivering, she replies: “RUN.” The same day, after hopping a plane to New York, she catches a cross-country train from Grand Central Station, where a roguish-looking redhead joins her. It’s all so exhilarating to watch that you can easily forget that the commuter hub doesn’t even have cross-country trains.