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.

After Hurricane Katrina, New Orleans handyman and blues singer-songwriter Gabe Recolte was bereft. Left homeless and heartbroken, he had been forced to evacuate and relocate before he could tell club owner Hattie how much he cares for her.

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

When the Postables discover an antique vase, they trace it back to three girls who attempted to sell it in to save their family farm. With the farm again facing hardship, the Postables must choose between doing what's legal and what's moral.