Blue's Clues Season 4 Episode 12 Un Día Con Plum! Episode Title:Un Día Con Plum!.Episode Description: Periwinkle missed his friend from the city, Plum, for a long time, but now he's finally come over to visit. Plum is a small purple bird who knows how to speak both Spanish and English. Throughout the episode, we learn how to speak Spanish words and also help out our friends. We learn Spanish as we help Periwinkle and Plum to create a marioneta. We also skiddoo into a puppet book, where we find Pedro, who needs our help in finding things to wear, so we use both Spanish and logic to figure out the right things that he needs.