Signed, Sealed, Delivered

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.

The postal detectives are inspired by their supervisor to take a risk to save the life of an army veteran.

The team attempt to deliver a potentially life-changing love letter.

It's the start of a new week for the team of intrepid postal detectives tasked with tracking down the recipients of undeliverable mail. Amongst the hustle and bustle of shuffling letters, Oliver O'Toole (Eric Mabius), the rigid leader of the team, makes his way to the office. As he moves through the mailroom, he bumps into department newcomer and resident technophile Shane McInerney (Kristin Booth). As Oliver and Shane arrive at the dead letter office they are greeted by the free-spirited, "girl next door" Rita Haywith (Crystal Lowe) and the nerdy but lovable Norman Dorman (Geoff Gustafson). It's a particularly special day at for the dead letter team as they prepare to welcome their new supervisor, the legendary Theresa Capodiamonte (Valerie Harper)!

A mangled letter describes a young woman's search for a soldier who saved her life and helped her escape Afghanistan during the Battle of Kamdesh. The Army officer is untraceable by normal means and the team must find him, even if he does not want to be found.

The postal detectives track clues to deliver a love letter that can change lives, while their strict new supervisor is on a journey of her own.

The Postables, Oliver, Shane, Rita and Norman, explore the mystery of true love as they deliver divorce papers to one couple the same day Oliver's missing wife reappears.

The Postables are on a mission to deliver a soldier's letter from Afghanistan to a teenager who's being relentlessly bullied, while Oliver's estranged father surprises him with news that shakes him to his core.

The Postables work against the clock decoding a letter to rescue a soldier in Afghanistan and reunite her with her family, while Rita competes for the National Miss Special Delivery title in Washington, D.C.

The beloved POstables discover a 200-year-old valentine that could change history, while their investigation of a damaged letter leads them to a public figure who could be brought down by its contents. And in the aftermath of Valentine's Day, Oliver, Shane, Norman and Rita are each dealing with heartbreaking circumstances.

Oliver and Shane explore their budding romance at a supper club where they meet a woman who's reeling from a sudden breakup with her boyfriend and asks the POstables to retrieve the valuable letter she just mailed him.

POstables seem to be unable to deliver a damaged letter from a military veteran that's a matter of life and death. They've always been able to deliver mail by the grace of God right at the time it's needed most. While Oliver's faith is not shaken, his father Joe questions this divine theory. As Norman and Rita go on a road trip to pursue leads in the urgent veteran's letter, their trip takes them to the next level of their relationship and leads them to the place they're needed the most.Meanwhile Oliver and Joe go backpacking on a father son bonding trip during which a serious injury puts both their lives at risk. After Oliver doesn't show up at work, Shane spearheads a rescue mission and calls Oliver's police officer friend Dale to help. When all seems lost, what's most important is found. To everything there is a season, a time for every purpose under heaven.

In the wake of Hurricane Katrina, New Orleans handyman and blues singer-songwriter Gabe Recolte was left homeless before he had the chance to express his love for club owner Hattie. Oliver and his team retrieve Gabe's love letter years later and face challenges in solving the mystery.

When The Postables discover an antique vase with a letter inside, they trace the package to three little girls who attempted to sell the vase 18 years ago in order to save their family farm. While the vase was an heirloom from many generations ago, the origin is suspicious. With the farm again facing financial hardship, The Postables must choose between doing what's legal and what's moral.

The Postables take a road trip in an old Winnebago in order to track down a small boy who they fear may have been kidnapped. The discovery of a 1980's era instant camera and the unusual photographs it contains, send our team on a wild ride across Colorado using the pictures as a guide.

It's just a week before Rita and Norman's long-awaited wedding day. The Postables go beyond the call of duty when after completing their postal mission they attempt a much bigger reunion; that of a mother and a daughter separated by the years.

As Shane and Oliver prepare for their wedding, they must pause to help a young boy fighting leukemia reunite with his long-lost friend. Their search is complicated by Shane's mother who arrives with her own plan for their wedding. Meanwhile, Rita and Norman navigate the challenges of trying to start a family, but a new employee in the Dead Letter Office may deliver the answer.

The POstables are back identifying the intended recipients of a trio of dead letters which have a surprising, personal impact on all of them.

The POstables take a road trip to find the recipient of a lost letter and track down a musician who is the key to solving the case.