As time ticks away in a high-stakes game of survival and reunion, the Postables embark on an urgent mission to decode a letter that could save a soldier in Afghanistan from her desperate family back home. Meanwhile, Rita shines under the spotlight as she competes for the coveted national Miss Special Delivery title in the nation's capital. With the clock counting down and the fate of those they care about hanging in the balance, the Postables must use their skills and determination to deliver hope and rescue.