Mysterious calls. Superhuman strength. Is Mr. Ratburn secretly a superhero? The kids search for the truth behind the Man in Green. Educational Objective: Arthur and friends learn not to jump to conclusions. When Buster and Ladonna bond over a memorable trip to the movies, Arthur feels left out. Has Ladonna taken his place as Buster's best bud? Educational Objective: Arthur learns that just because your friends spend time with other people, it doesn't mean they don't care about you.