Clifford the Big Red Dog (2019) Episode 6 - The Little Red Dream / The Mail Mix Up >Miss Clayton is holding a welcome party for Birdwell Island's new mailman, but the organization for the party has left her no time to send out the party invitations. In order to help Miss Clayton and inspired by her story about the famous Pony Express, Emily Elizabeth and Clifford, along with Bailey and Tucker, deliver the invitations as the "Puppy Express". The only snag they encounter in their deliveries is an invitation that's addressed to a man neither has met before by the name of Mr. Bassu, but just as the party time gets closer, Emily Elizabeth and her canine friends soon realize that the Mr. Bassu has been staring them in the face all throughout their "Puppy Express" run.