A group of postal workers transform themselves into a team of detectives to track down intended recipients of undeliverable mail. Their missions take them out of the office into a world where redirected letters and packages can save lives, solve crimes, reunite old loves and change futures by arriving late but somehow on time.
James Roday plays the somewhat eccentric Shawn Spencer, a police consultant who solves crimes with powers of observation so acute that the police think he's psychic - or so he lets them think.