Season 18

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Season 18 of Arthur premiered on PBS on September 29, 2014 with "The Friend Who Wasn't There/Surprise!".^[1]^[2] It concluded on September 11, 2015 with "The Pageant Pickle/Some Assembly Required".^[3]

The season was first announced on June 21, 2013^[4] and was in production throughout 2013 and 2014.^[5]^[6] Storyboarding began around early December 2013.^[7] It is the third one produced by 9 Story Entertainment.^[8] There were 10 episodes in it.^[9]

Lydia was going to appear in this season,^[10]^[11] but the episode "Little Miss Meanie" was made part of season 19 instead.

Episodes

Screenshot	Title	Number	Episode	Original Airdate
	"The Tattletale Frog"	403	1a^[12]	October 1, 2014^[12]
	When Bud is blamed for an accident D.W. causes, she has to decide whether to let her friend take the fall.^[12]
	"D.W. & Bud's Higher Purpose"	404	1b^[12]	October 1, 2014^[12]
	D.W. and Bud can't wait to ride "The Buzzard", Wonderworld's newest roller coaster. Will they make it past the persnickety ticket taker...or come up short?^[12]
	"The Friend Who Wasn't There"	405	2a^[1]	September 29, 2014^[1]
	Muffy embarks on an epic quest to find her long lost imaginary friend. But she has to be careful-the Crosswire basement is full of bewitched boxes and gadgets and dolls...oh my!^[13]
	"Surprise!"	406	2b^[1]	September 29, 2014^[1]
	It's Catherine's 16th birthday, and Francine has been cordially uninvited to the party. With the help of her friends, she whips up the perfect present for her big sister...a sneaky surprise with a side of payback!^[13]
	"The Case of the Girl with the Long Face"	407	3a^[14]	September 30, 2014^[14]
	Fern has been feeling low and no one can figure out why. Luckily, Buster is on the case! He'll leave no stone unturned, no lead unexplored, no ice cream uneaten...^[15]
	"The Substitute Arthur"	408	3b^[14]	September 30, 2014^[14]
	With Arthur out of town, Buster is on the hunt for a new best friend. The problem is, he only wants to play games his way. Will he learn to compromise or is he destined to play alone?^[15]
	"Best Wishes"	409	4a	October 2, 2014^[16]
	After George has a lucky streak, his friends pressure him to wish for a snow day. Can he deliver or is he out of luck?^[16]
	"The Tardy Tumbler"	410	4b	October 2, 2014^[16]
	Prunella is excited about making the gymnastics team...until she realizes practice starts at 6am! Will she honor her commitment...or hit the snooze button?^[16]
	"Fountain Abbey"	411	5a	January 26, 2015^[17]
	Muffy is devastated when she learns her great, great grandmother, Mary Alice Miller, wasn't royalty, but a common maid. The indignity! However, her old diary reveals a more interesting story.^[18]
	"Arthur Calls It"	412	5b	January 26, 2015^[17]
	Pressure from his classmates has Arthur doubting his decision to call Buster out during a baseball game. Will he succumb to peer pressure, or stick with what he believes is right?^[18]
	"Whip. Mix. Blend."	413	6a	September 7, 2015^[19]
	When Rattles's mother starts dating Archie Vanderloo, Rattles finds himself spending lots of time with Archie's twins. The problem is, he doesn't have anything in common with them! Can this blended family learn to get along?^[19]
	"Staycation"	414	6b	September 7, 2015^[19]
	Arthur offers to babysit so that his parents can enjoy some peace and quiet in the backyard. What could go wrong? With D.W. on the loose...just about everything!^[19]
	"Two Minutes"	415	7a	June 1, 2015^[20]
	Power shifts in the Tibble household when the twins find out Tommy is two minutes older than Timmy. Frustrated in his new role, Timmy enlists the help of an expert older brother tamer: D.W.!^[21]
	"Messy Dress Mess"	416	7b	June 1, 2015^[20]
	Ladonna is thrilled when Muffy loans her a beautiful recital dress. But a run-in with a painted bench leaves Ladonna wondering how to break the news to her fashionista friend.^[21]
	"Arthur Read: Super Saver"	417	8a	September 10, 2015^[22]
	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?^[22]
	"Tibbles to The Rescue"	418	8b	September 10, 2015^[22]
	When D.W. saves the Tibble twins from a nasty fall, they decide to repay the favor...whether she likes it or not.^[22]
	"The Pageant Pickle"	419	9a	September 11, 2015^[3]
	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!^[3]
	"Some Assembly Required"	420	9b	September 11, 2015^[3]
	D.W. can't wait to test out her new playset! But while it's being built she'll have to settle for the box. With the help of Bud and Emily, she realizes her imagination is way better than any toy!^[3]
	"Shelter from the Storm"	421	10	September 8, 2015^[23]
	When a powerful hurricane hits Elwood City, everyone's affected. Ladonna's dad is called up by the Army Corps of Engineers. Muffy relocates to a shelter, while Arthur struggles to reunite lost pets and owners. And the Brain seeks the help of a therapist, voiced by special guest Idina Menzel, to help him manage his anxiety.^[23]