Muffy gets Bailey to help her recover nostalgic memories of her childhood imaginary friend. Meanwhile Francine has been uninvited to Catherine's sweet sixteen, and decides to get a little birthday revenge.
Fern seems depressed lately, but nobody can figure out why. Can amateur detective Buster Baxter help solve the mystery of what's got her down in the dumps?
George has a lucky streak, but how long will it last, and can he really rely on it? Meanwhile Prunella goes into gymnastics for Marina's sake, but the rigorous training program has her wanting to give up.
Muffy is devastated to learn that her family history is one of poverty and manual labor, but with some help from her friends, especially Binky, can she learn to appreciate her heritage?
Rattles finds that things are getting confusing when his mom starts dating a new guy, Archie. Rattles has nothing in common with Archie's kids, but can he still find joy in this new family unit?
Business is slow for Mr. and Mrs. Read, and Arthur is concerned. Can this "super saver" find ways to keep his family in the green?/ When D.W. saves Tommy and Timmy from a nasty fall, they decide to repay the favor...whether D.W. likes it or not.
School is almost out and Arthur can hardly wait for those lazy summer days by Muffy's pool. Nothing could ruin such a happy time of year... except maybe-D.W.'s Spring Pageant!/ D.W. can't wait to test out her new play set! But while it's being built she'll have to settle for the box. With the help of Bud and Emily, D.W. realizes her imagination is way better than any toy!
Arthur and the gang cope with a dangerous hurricane. Muffy has to put up with shelter life, LaDonna's father has to aid in disaster relief, Arthur worries for stranded pets and the Brain learns to overcome trauma.
