A group of postal detectives work to solve the mysteries behind undeliverable letters and packages from the past, delivering them when they are needed most.
Episode 1
A legendary supervisor makes a grand entrance in time to oversee the postal detectives unravel a mystery behind a letter from a young boy whose life is in danger.
Episode 2
The postal detectives are inspired by their supervisor to take a risk to save the life of an army veteran.
Episode 3
The team attempt to deliver a potentially life-changing love letter.
Episode 4
The postables hunt for clues to deliver a package that could change a family forever, while their tough-as-nails supervisor turns towards a new life chapter.
Episode 5
The postal detectives try to deliver a package from a son to his estranged dad.
Episode 6
A letter from beyond the grave brings new life to an estranged family.
Episode 7
The postal detectives discover a package of music that can launch a career and restore a life.
Episode 8
Justice comes in the form of a letter as the team at the Dead Letter Office solve clues to deliver not only a letter, but an unspeakable truth that has been buried for years.
Episode 9
Lives are at risk when the Postables discover a box of treasure.
Episode 10
Norman meets a family member who changes his life.