Signed, Sealed, Delivered for Christmas- Oliver, Shane, Norman and Rita work together in the dead letter office to solve the mystery behind an undeliverable Christmas card from years past.Signed, Sealed, Delivered: From Paris with Love- The POstables explore the mystery of true love as they deliver divorce papers to one couple the same day Olivers missing wife reappears.Signed, Sealed, Delivered: Truth Be Told- The POstables are on a mission to deliver a soldiers letter from Afghanistan to a teenager whos being relentlessly bullied, while Olivers estranged father surprises him with news that shakes him to his core.Signed, Sealed, Delivered: The Impossible Dream- 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.