It's the final day of their probation period, and Sean, Sal, and Graham have one goal: finish their deliveries on time and prove they deserve the job. What they don't expect is everything that can possibly go wrong. From bizarre customer encounters and impossible apartment buildings to runaway dogs, mistaken identities, and moments that are equal parts awkward and unforgettable, the three drivers quickly learn that delivering packages is the easy part — dealing with people is something else entirely. Told over the course of one chaotic day, Signature Required blends humor, tension, and unexpected heart in a story inspired by real experiences behind the wheel. Because on this route, every stop comes with a story — and not all of them fit neatly inside a box.