Signed, Sealed, Delivered | Definitive Edition DVDSigned, Sealed, Delivered introduces a quartet of postal workers in the Dead Letter Office who transform themselves into a untraditional team of detectives to track down intended recipients of undeliverable mail. Their missions take them out of the office into an unpredictable world where redirected letters and packages can save lives, solve crimes, reunite old loves and changes futures by arriving late but somehow on time. The intrepid team led by