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"The Depths of Cousin Fethry!" is the twenty-sixth episode of DuckTales. It premiered on October 27, 2018, and is the second episode of the second season.

Synopsis

Huey and Dewey are led on an adventure by their distant Uncle Fethry, who takes them to the depths of Scrooge's deep‐sea laboratory.

Plot

While exploring Scrooge's study, Huey Duck and Dewey Duck are alerted by a call from one of Scrooge's hotlines. Scrooge and Donald Duck inform them the caller is from their cousin Fethry Duck stationed in Scrooge's underwater laboratory. Though their uncles express irritation of dealing with Fethry, the boys enthusiastically answer the call and coerce Launchpad McQuack to navigate them down without Scrooge knowing.

Huey and Dewey are both excited to meet Fethry, Huey hoping to learn from him and Dewey hoping to find exotic creatures. The group arrives outside the lab—a lighthouse—where Fethry is in the observation deck waiting. Huey and Dewey rush upstairs to meet him as Launchpad docks the sub when he hears a familiar voice calling to him coming from a girl named Oceanika. Inside, the boys are given an eccentric introduction from Fethry. He takes them down from the lighthouse on the aqua-vator to the McDuck Sublab for a tour. On the way down, the aqua-vator experiences turbulence from the ocean's hydrothermal vents. Fethry has the aqua-vator stop at the Tully Observatory for repairs, but the group is ambushed by giant sea worms mutated by the hydrothermal vents. Fethry instructs the boys to embrace the sea worms and show them affection, allowing them to escape the worms' clutches. There, Fethry retrieves his "team" of bioluminescent krill to help light up their way the deeper they go.

Something cuts the cable of the aqua-vator and the group is forced to go the rest of the way scuba diving. They enter Fethry's personal pod and learn he has been living in the pod for four and a half years. Fethry reveals his discovery: rainbow lights that he can observe from his window. Fethry also reveals he isn't a scientist but the lab's caretaker, prompting Huey calling Fethry out for wasting their time, crushing Fethry's spirits. Right as Huey and Dewey prepare to leave, the rainbow lights are revealed to be emitting from a gigantic monster. The group retreats back to the aqua-vator with the monster in pursuit. The inside begins to flood from damage, so Huey and Dewey shine light on the monster to scare it away. Fethry recognizes the monster as Mitzy, one of the krill that belonged to him and mutated to colossal size. Dewey still tries to blind her against Fethry's concerns until Huey decides to take Fethry's advice and sings a song that calms Mitzy down. Dewey puts his trust in Huey and he lowers the light, enabling Mitzy to clutch the aqua-vator and deliver it to the surface. Fethry bids farewell to the boys and departs with Mitzy to become a scientist. The boys run into Launchpad returning from his own underwater adventure. The group then heads home to convince Scrooge their excursion was Louie's idea.

Cast

Trivia

  • This episode marks Fethry Duck's animation debut.
  • 1964, the date that the McDuck Sublab of the Future was created, as mentioned by Fethry, is likely a reference to his very first print appearance in the Donald Duck comic The Health Nut, drawn by Al Hubbard and written by Dick Kinney and first printed in Italy in Topolino #453.
  • The tune to which Huey and Dewey sing, "Best time waste ever!" sounds nearly identical to the titular refrain of Grease's "We Go Together".
  • Launchpad going on an "off-screen adventure" previously occurred in "The House of the Lucky Gander!", right down to having the same wistful reaction in the end.

Gallery

v - e - d
Ducktales Logo
Media
Shows/Movies: 1987 series2017 seriesRaw ToonageDuckTales the Movie: Treasure of the Lost LampVideography

Video Games: Video game (HD remake/Soundtrack) • DuckTales 2The Quest for GoldScrooge's Loot
Comics: Comic Books (IDW)
Books: Dinosaur DucksThe Secret City Under the SeaDinosaur ValleyLaunchpad's Daring RaidWelcome to DuckburgSphinx for the Memories and Sir Gyro GearlooseThe Great Lost Treasure HuntScrooge McDuck and the Big SurpriseDinosaur Ducks and Jungle DuckThe Hunt for the Giant PearlScrooge's Treasure HuntChristmas at the North PoleArmstrong the Robot and EarthquackBack to the Klondike and Superdoo!Silver Dollars for Uncle ScroogeWebby Saves the Day

Characters
1987 series: Scrooge McDuckHuey, Dewey, and LouieLaunchpad McQuackWebby VanderquackBentina BeakleyDuckworthGyro GearlooseLittle HelperDoofus DrakeFenton CrackshellDonald DuckGladstone GanderBubba the Cave DuckTootsie the TriceratopsSkittlesBlackjackPouponGene the GenieGlittering GoldieMad Dog McGurkFeathers GaloreBurt QuackarachMajor CourageMicro DucksAdmiral GrimmitzKing HomerQueen ArielShawebizadGandra DeeMcPapaMcMamaRoboticaBeagle BoysMa BeagleFlintheart GlomgoldDijonArgus McSwineMagica De SpellMinima De SpellPoe De SpellEl CapitanJoaquin SlowlyMerlock the MagicianCinnamon TealDracula DuckDr. NoGoodMillionara VanderbucksFritter O'WayLawrence LoudmouthBruno Von BeakArmstrongThe SirensCirceHarpiesYuckalindaQueen GriseldaDjinniTerra-Firmie KingOverlord BulovanSolegoGICU-2Magica's ShadowThe Fear Demons

2017 series: Della DuckLenaCaptain PeghookManny the Headless Man-HorsePixiuGabby McStabbersonHack and Slash SmashnikovRoxanne FeatherlyToad Liu HaiMark BeaksFalcon GravesAmunetSabafToth-RaZeusSeleneStorkulesBriar and BrambleDarkwing DuckGosalyn MallardMegavoltDon KarnageQuackerjackLiquidatorJosé CariocaPanchito PistolesFethry Duck

Episodes
1987 series

Season One: "The Treasure of the Golden Suns" • "Send in the Clones" • "Sphinx for the Memories" • "Where No Duck Has Gone Before" • "Armstrong" • "Robot Robbers" • "Magica's Shadow War" • "Master of the Djinni" • "Hotel Strangeduck" • "Lost Crown of Genghis Khan" • "Duckman of Aquatraz" • "The Money Vanishes" • "Sir Gyro de Gearloose" • "Dinosaur Ducks" • "Hero for Hire" • "Superdoo!" • "Maid of the Myth" • "Down and Out in Duckburg" • "Much Ado About Scrooge" • "Top Duck" • "Pearl of Wisdom" • "The Curse of Castle McDuck" • "Launchpad's Civil War" • "Sweet Duck of Youth" • "Earth Quack" • "Home Sweet Homer" • "Bermuda Triangle Tangle" • "Micro Ducks from Outer Space" • "Back to the Klondike" • "Horse Scents" • "Scrooge's Pet" • "Catch as Cash Can" • "Merit-Time Adventure" • "The Golden Fleecing" • "Ducks of the West" • "Time Teasers" • "Back Out in the Outback" • "Raiders of the Lost Harp" • "The Right Duck" • "Scroogerello" • "Double-O-Duck" • "Luck o' the Ducks" • "Duckworth's Revolt" • "Magica's Magic Mirror" • "Take Me Out of the Ballgame" • "Duck to the Future" • "Jungle Duck" • "Launchpad's First Crash" • "Dime Enough for Luck" • "Duck in the Iron Mask" • "The Uncrashable Hindentanic" • "The Status Seekers" • "Nothing to Fear" • "Dr. Jekyll & Mr. McDuck" • "Once Upon a Dime" • "Spies in Their Eyes" • "All Ducks on Deck" • "Ducky Horror Picture Show" • "Till Nephews Do Us Part"
Season Two: "Time is Money" • "Super DuckTales"
Season Three: "The Land of Trala La" • "Allowance Day" • "Bubbeo & Juliet" • "The Good Muddahs" • "My Mother the Psychic" • "Metal Attraction" • "Dough Ray Me" • "Bubba's Big Brainstorm" • "The Big Flub" • "A Case of Mistaken Secret Identity" • "Blue Collar Scrooge" • "Beaglemania" • "Yuppy Ducks" • "The Bride Wore Stripes" • "The Unbreakable Bin" • "Attack of the Fifty-Foot Webby" • "The Masked Mallard" • "A DuckTales Valentine"
Season Four: "Ducky Mountain High" • "Attack of the Metal Mites" • "The Duck Who Knew Too Much" • "New Gizmo-Kids on the Block" • "Scrooge's Last Adventure" • "The Golden Goose"

2017 series
Season One: "Woo-oo!" • "Daytrip of Doom!" • "The Great Dime Chase!" • "The Beagle Birthday Massacre!" • "Terror of the Terra-firmians!" • "The House of the Lucky Gander!" • "The Infernal Internship of Mark Beaks!" • "The Living Mummies of Toth-Ra!" • "The Impossible Summit of Mt. Neverrest!" • "The Spear of Selene!" • "Beware the B.U.D.D.Y. System!" • "The Missing Links of Moorshire!" • "McMystery at McDuck McManor!" • "JAW$!" • "The Golden Lagoon of White Agony Plains!" • "Day of the Only Child!" • "From the Confidential Casefiles of Agent 22!" • "Who is Gizmoduck?!" • "The Other Bin of Scrooge McDuck!" • "Sky Pirates...in the Sky!" • "The Secret(s) of Castle McDuck!" • "The Last Crash of the Sunchaser!" • "The Shadow War!"
Season Two: "The Most Dangerous Game...Night!" • "The Depths of Cousin Fethry!" • "The Ballad of Duke Baloney!" • "The Town Where Everyone Was Nice!" • "Storkules in Duckburg!" • "Last Christmas!"

Locations
DuckburgAtlantisThe Money BinMcDuck ManorCastle McDuckFountain of YouthScotlandNotre DuckValley of the Golden SunsSt. CanardCape Suzette
Organizations
Air PiratesF.O.W.L.Junior WoodchucksS.H.U.S.H.
Objects
Number One DimeJunior Woodchucks GuidebookGizmosuitGene's LampMerlock's TalismanSun CoinSun ChaserHarp of TroyMillennium ShortcutGyro's HelicopterMolecular ManipulatorGolden GooseWebby's Quacky Patch DollHindentanicMagic MedallionRatcatcherJewel of AtlantisGummiberry JuiceIron VulturePirate FightersSpear of Selene
Songs
DuckTales ThemeThree Cheers for Bubba DuckBoogie Beagle BluesMoon Stage ThemeSky PiratesThe Three Caballeros
See also
Carl BarksThe Disney AfternoonDarkwing DuckQuack PackDisney XD (Netherlands)Let's Go to Disneyland Paris