![Signed, Sealed, Delivered: From the Heart](https://image.tmdb.org/t/p/w500/8KKfV5pPq6RETbEzLDHYYwAqN9m.jpg)
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