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List of Sonic Underground episodes

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A list of episodes from the TV series Sonic Underground.

Episode number Episode name Episode song Written by Synopsis
1 "Beginnings" (Origins, Part 1) "Someday" Ben Hurst and Pat Allee Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over Mobius, and how she had to give up her three children, Sonic, Sonia, and Manic to fulfill a prophecy exclaiming that one day, the siblings will be able to rise against Robotnik's rule and restore peace to the planet.
2 "Getting to Know You" (Origins, Part 2) "Working Together In Harmony" Ben Hurst and Pat Allee The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. But do they really know each other well enough? So look's like they're going to have to work as a team right?
3 "Harmony or Something" (Origins, Part 3) "We're All In This Together" Ben Hurst and Pat Allee Sonic, Sonia and Manic put their training to the test as they embark on a mission to rescue the Oracle from Robotnik! Can they work together in harmony, or will their lacking seal their own doom?
4 "To Catch a Queen" "Have You Got The 411?" Doug Booth Argus, the former captain of the Queen's guard, arranges a secret meeting with her. But he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer, the Sonic trio race to the rescue..
5 "Mobodoon" "I Found My Home" Peter Hunzinger Evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik's hand, where the people are kind-hearted, and the food is free! Sounds like an ideal place, but there is more to Mobodoon than meets the eye. After using the Power Stone, the siblings discover that this is where they were born! Manic starts to become attached to this place so much so that he wants to stay. Is this the end of the Sonic Underground?
6 "The Price of Freedom" "Money Can't Buy" Martha Moran Sonia, after getting really dirty on one of her missions, flips out and drives off to East Mobius. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to Sonic's sister or Mindy though, the timepiece is a tracking device designed by Robotnik. Sonia finds out too late, and soon, Mindy's kingdom is swarming with similar wristwatch-style robots, all programmed to capture the hedgehogs! Can the siblings stomp out this bug problem?
7 "Underground Masquerade" "Let The Good Times Roll" Rick Merwin Manic begins to backslide to his old ways when the gang discover a band of thieves led by Max. Meanwhile, Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They only need someone to frame for a theft, and Manic is the perfect victim...
8 "Tangled Webs" "Teach The Children, Light The Way" Ben Hurst and Pat Allee Sonic meets-up with his old friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters he is actually working for Dr. Robotnik. Until he finds out that the Freedom Fighters' "sanctuary" is for children. Sonic, Sonia, and Manic must now try to get him away from Robotnik.
9 "The Deepest Fear" "Face Your Fear" Michael Edens and Mark Edens On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast. The legendary story becomes fishy when the Hedgehogs meet Captain Squeege who informs them of a scam in which townspeople must rely on Robotnik for protection from the sea monster, when in reality it is Robotnik who is sinking ships, not a monster. Sonic must overcome his fear of water and the monster to find the truth and thereby ending the fears of the sea side town.
10 "Who Do You Think You Are" "We Need To Be Free" Ben Hurst and Pat Allee The Sonic Underground arrive in Tashistan in search of the Queen's Journal. In the city Sonia loses her memory and meets Raphi, one of the town's resistance. But when they are captured, can Sonic and Manic rescue her?
11 "The Last Resort" "Listen To Your Heart" Michael Edens (credited as Mickael Edens) The hedgehogs come across Lake Valley, a beautiful resort with friendly people. But how can it be beautiful when Robotnik's controlling the rest of Mobius? Sonia finds out the hard way in this episode.
12 "Come Out Wherever You Are" "Society Girl" Ben Hurst and Pat Allee Sonia has been invited to a debutante ball, arranged by none other than Robotnik's right hand man Bartleby. Sonic helps her in getting there without being caught, but even more problems arise when Cyrus chooses her to fly the captives of the "Predator" to safety...
13 "Winner Fakes All" "Built For Speed" Mark Edens Robotnik has created a super-fast robot, and he's organised a race for the top athletes of Mobius and the robot. But it's all a trap to drive Sonic out into the open... can he resist the competition?
14 "A Hedgehog's Home is Her Castle" "Let's Do It To It" Len Janson Sonia inherits a spooky and dilapidated castle, and she enjoys the idea of making it the Underground headquarters. But all is not as it seems when they stay there overnight.
15 "Artifact" "You Can't Own Everything" Michael Edens In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually from more recent history; they are bombs, and they're about to go off. When the bomb lands in Bartleby's hands, can Sonic and co. stop Robotnik from finding the real Mobupinchu and save Bartleby?
16 "Bug!" "Never Give Up" Len Janson The Underground finds a village that has been destroyed by its Freedom Fighter occupants. Why has this happened? It seems to be something to do with the Flybots all over the desert, as Manic finds out when he's injected with a mind-control serum making him a slave to Dr. Robotnik!
17 "Sonic Tonic" "The Fastest Thing Alive" Mark Edens Using the essence of a rare plant, Robotnik manages to make Sleet and Dingo fast-- maybe even faster than Sonic. The Sonic Underground manage to get hold of it, but can Sonia and Manic resist the temptation of taking the potion themselves and being as fast as Sonic?
18 "Friend or Foe" "Not Always What They Seem" Kevin Donahue The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald, and he jumps to conclusions. So while Knuckles and Sonic do battle, Sleet and Dingo set their eyes on the Emerald...
19 "Head Games" "Take A Chance" Michael Edens Queen Aleena sends her children over to Speedster Island, a place Bartleby is trying to turn into a holiday resort. Sleet and Dingo are pretending to help, but they just want to robotocise the islanders, who worship three stone heads that resemble Sonic, Sonia and Manic.
20 "When in Rome..." "Where There's A Will, There's A Way" Len Janson The Oracle, wishing to test the Hedgehog's practical capabilities, strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike named Sleetus presides as King. The former fast and furious hedgehogs must use their usual blend of cunning and strategy to save this reality, but without their super-speed, will they be stopped dead in their tracks?
21 "The Jewel of the Crown" "The Cosmic Dance" Mark Edens Queen Aleena's Royal Jewel can trace the Queen like a homing device. Having apparently found the jewel, Sonic, Sonia and Manic think they may have found their mother at last. But little do they know it is actually a trap to capture Robotnik; a trap they've just fallen into...
22 "Three Hedgehogs and a Baby" "Being A Kid Is Cool" Len Janson While in Robotropolis, Sonic, Sonia, and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to mind it, and get in touch with his mothering instincts. But the baby isn't as innocent as it looks... and Robotnik comes within an inch of uncovering the sanctuary.
23 "Dunes Day" "True Blue Friend" Mark Edens The Sonic Underground come across a nomadic tribe whilst journeying through the desert. However, Manic doesn't seem to trust the tribe's leader, Ifyoucan. He sets off to find out the truth, and uncovers a shocking secret...
24 "Mummy Dearest" "We Are Sonic Underground" Ben Hurst and Pat Allee The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. But, with Sleet and Dingo in hot pursuit, can the Sonic Underground find the scrolls before it's too late?
25 "Hedgehog in the Iron Mask" "Part Of The Problem" Bob Forward In this episode the Sonic Underground rescue a prisoner from one of Robotnik's towers - a hedgehog wearing a mask (so you can't see his face properly). The prisoner claims he is the hedgehogs' uncle; the twin brother of Queen Aleena! But it is all just a sinister ploy by Robotnik to split the Sonic Underground up...
26 "Six is a Crowd" "I Can Do That For You" Len Janson In this episode, the Sonic Underground are sent to an alternate world for training by the Oracle. But, they soon discover that, in that world, they are the evil ones and Robotnik is the hero! Now the must work with the good Robotnik to defeat their corrupt selves!
27 "Flying Fortress" (Chaos Emerald Crisis, Part 1) "No One Is An Island" Mark Edens Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft, they head to the Floating Island to enlist the help of Knuckles. But we all know how hard-headed Knuckles is...
28 "No Hedgehog is an Island" (Chaos Emerald Crisis, Part 2) "Learn To Overcome" Matt Edens After taking off with the Chaos Emerald, Dingo steals the Emerald, but accidentally breaks it, unleashing the chaos energy inside. The Sonic Underground and Knuckles are off to talk to Knuckles' grandfather Athair for advice on handling the situation. But they are not prepared for the advice Athair gives them... they must make an alliance with Robotnik!
29 "New Echidna in Town" (Chaos Emerald Crisis, Part 3) "The Mobius Stomp" Mark Edens Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed, but to acquire the villain's help, the echidna must betray the Hedgehogs...after rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo, transformed by the chaos energy into a terrifying monster!
30 "Wedding Bell Blues" "When Tomorrow Comes" Ben Hurst and Pat Allee When Robotnik announces he plans to marry Queen Aleena, the shocked Sonic siblings race to the rescue, unaware it's a trap...
31 "Country Crisis" "You Play The Game" Laren Bright The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's dam-building project from flooding the countryside.
32 "Haircraft in Space" "Don't Be A Backstabber" Tracey Berna A salon robot is hypnotising people that go to her salon into revealing deep secrets. When Sonia goes, she spills the location of their new base! Can she and her brothers keep Robotnik from getting the information?
33 "Healer" "We're The Sonic Underground" Ben Hurst and Pat Allee A Mobian named Titus creates a machine that can de-robotisize robots, called, appropriately enough, the De-Roboticizer. But when Robotnik and his crew go after it, it may do more harm than good.
34 "Sonia's Choice" "Never Easy" Ben Hurst and Pat Allee Robotnik is about to auction off the four royal goblets in Anèz. But when the hedgehogs take the goblets back, Sonic and Manic are captured! At both ends of the city are Roboticizers with one of Sonia's brothers inside. With the help of a Freedom Fighter called Renée, can Sonia save both of them?
35 "The Big Melt" "Fun In the Sun" Len Janson What started as a fun vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with his most original plan yet: melt the polar ice caps. Things will be hard for the Sonic Underground when Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own.
36 "Sleepers" "Have It All Again" Ben Hurst and Pat Allee Robotnik invents a new dart that induces sleep and sends them after the resistance. It's up to Sonic and siblings to stop them from the source. But they run into a bit of trouble when Manic is hit by the sleeper darts. Nevertheless, after destroying the sleepers, they must destroy the fuel source in the Bad Lands' Mine...
37 "Bartleby the Prisoner" "Justice Callin'" Elenor Burian Mohr and Terence Taylor Bartleby is placed under arrest for helping out the resistance. As you might expect, it's the Sonic Underground to the rescue!
38 "The Art of Destruction" "The Sound Of Freedom" Laren Bright The Sonic Underground come across ART, Robotnik's most powerful robot ever, that can think and learn for itself. But ART soon learns the power of friendship, and switches to the Resistance. This gives a vengeful Sleet the opportunity to finish off ART - and the hedgehogs - once and for all...
39 "The Pendant" "Liberty's Gonna Rock" Ben Hurst and Pat Allee In the newly-discovered Emerald Peninsula, while combating Sleet and Dingo, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic are in a race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever...
40 "Virtual Danger" "Don't Let Your Guard Down" Pat Allee and Ben Hurst Sonic and Manic get addicted to a new video game so much that it is hindering Cyrus' plan to infiltrate Robotnik's base. But, when Sonic and Manic get sucked into the game, can they survive when they find out Robotnik is behind everything and ready to eliminate them?
41 "Be Prepared" "When Our Time Comes" Ben Hurst and Pat Allee When the Hedgehogs visit the Oracle, he informs that Queen Aleena will reunite and help defeat Robotnik. The Hedgehogs must be prepared to reunite their mother, bring allies from the series and defeat Robotnik.
42 "New Dangers Awaits" "What Friends Are For" Ben Hurst and Pat Allee The Hedgehogs had a nightmare; Robotnik heard that the prophecy is coming true, he declares to find Queen Aleena and eliminate all life on Mobius! Will the Hedgehogs meet their allies and find their mother before Robotnik does?
43 "Final Battle of Robotnik" "Final Battle (Score)" *This song is not sung by the Hedgehogs. The exact music of the Final Battle. Ben Hurst and Pat Allee Since Robotnik and his army captured everyone (including the Hedgehogs, Queen Aleena and the allies), he declares that the Queen refuses to give up, his new power suit absorbed the Queen in his suit, however, the Hedgehogs escaped from their cells and steals the 3 power suits and gets to the top of the castle. Will the Hedgehogs finally defeat Robotnik? With the help of the allies down at the courtyard, they battle against the robot army. *Note: Since Robotnik found out about the medallions, he took them away and took the energy out of them into his power suit, so that the Hedgehogs don't need them to fight Robotnik.

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