Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Sonic Underground Season 1 Episodes
Season 1 Episode Guide
40 Episodes 1999 - 1999
Episode 1
Beginnings (Origins: Part 1)
Mon, Aug 30, 199922 mins
The history of the Underground is told in detail, from the fall of Mobotropolis to the rise of Robotnik.
Episode 2
Getting to Know You (Origins: Part 2)
Wed, Oct 6, 199922 mins
The Hedgehogs begin to learn the important lessons of what it takes to be a freedom fighter.
Episode 3
Harmony or Something (Origins: Part 3)
Fri, Oct 8, 199922 mins
Manic, Sonic and Sonia must end their training early when Robotnik threatens the Oracle and takes a member of the resistance hostage.
Episode 4
To Catch a Queen
Tue, Aug 31, 199922 mins
Argus, a captain of the Queen's guard, is captured by Sleet and Dingo before he can reach the secret rendezvous where he was to meet Queen Aleena.
Episode 5
Mobodoon
Wed, Sep 1, 199922 mins
Sonic, Sonia and Manic return to their birthplace, Mobodoon, a beautiful, festive town.
Episode 6
The Price of Freedom
Thu, Sep 2, 199922 mins
Sonia travels to east Mobius to visit her friend Mindy at the LaTour estate.
Episode 7
Underground Masquerade
Fri, Sep 3, 199922 mins
Sleet and Dingo plan to collect the taxes owed to Robotnik from the Duke of Velcronia but keep it for themselves.
Episode 8
Tangled Webs
Mon, Sep 6, 199922 mins
The sinister Robotnik blackmails Cyrus, an old friend of Sonic's, by holding his father hostage.
Episode 9
The Deepest Fear
Tue, Sep 7, 199922 mins
On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.
Episode 10
Who Do You Think You Are?
Wed, Sep 8, 199921 mins
Queen Aleena's royal journals are rumored to be buried under a palace in the city of Tashistan.
Episode 11
The Last Resort
Thu, Sep 9, 199922 mins
While lost in the wastelands of Mobius, Sonic, Manic and Sonia stumble upon an oasis called Lake Valley Resort.
Episode 12
Come Out Wherever You Are
Fri, Sep 10, 199922 mins
Sonia is invited to a debutante ball, but before she can be officially announced to society, she and her brothers, Manic and Sonic, have an important mission.
Episode 13
Winner Fakes All
Mon, Sep 13, 199922 mins
Robotnik organizes a track meet to lure Sonic into a trap.
Episode 14
A Hedgehog's Home is Her Castle
Tue, Sep 14, 199922 mins
The Hedgehogs receive a message they believe is from their cousin.
Episode 15
Artifact
Wed, Sep 15, 199922 mins
The Hedgehogs steal historical artifacts of Mobuis from Robotnik before he can pawn them off at an auction.
Episode 16
Bug!
Thu, Sep 16, 199922 mins
A faction of the Freedom Fighters is wiped out by a swarm of metallic fly-bots.
Episode 17
Sonic Tonic
Fri, Sep 17, 199922 mins
A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him as fast as Sonic so that he may finally catch him.
Episode 18
Friend or Foe
Mon, Sep 20, 199922 mins
The Hedgehogs converge on the Floating Island, in their latest attempt to find their Mother.
Episode 19
Head Games
Tue, Sep 21, 199922 mins
As Sonic begins to chow chili dogs for a snack, he finds a message in the sack from his mother urging him to head to Speedster Island.
Episode 20
When in Rome
Wed, Sep 22, 199922 mins
Sonic becomes frustrated that maybe all of their efforts of fighting for freedom seem futile.
Episode 21
The Jewel in the Crown
Thu, Sep 23, 199921 mins
Robotnik has his sights set upon Queen Aleena's crown jewel, which glows as it is moved closer her.
Episode 22
Three Hedgehogs and a Baby
Fri, Sep 24, 199921 mins
Sonic, Manic and Sonia find an abandoned baby in an alley and begin a search for the baby's parents. Manic grows particularly fond of the child and decides that instead of taking the baby to a shelter as Sonic and Sonia ordered, the baby would be more comfortable at the Underground sanctuary. While Sonia and Sonic are working to uncover another plot of Robotnik they find that the baby is not a baby at all, but an android equipped with cameras to spy on the Underground. Sonia and Sonic frantically search for their brother before he, unknowingly, exposes the location of the secret sanctuary.
Episode 23
Dunes Day
Mon, Sep 27, 199922 mins
Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe of nomads for the Resistance.
Episode 24
Mummy Dearest
Tue, Sep 28, 199922 mins
Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest.
Episode 25
The Hedgehog in the Iron Mask
Wed, Sep 29, 199922 mins
The Hedgehogs latest quest to find their mother takes them to the prison tower where they encounter a masked stranger who insists he is family.
Episode 26
Six Is a Crowd
Thu, Sep 30, 199922 mins
The Oracle advises the Hedgehogs to undertake a mission which could reveal answers about their future.
Episode 27
Flying Fortress: Chaos Emerald Crisis Part 1
Fri, Oct 1, 199922 mins
What is supposed to be a vacation for Sonic, Manic and Sonia turns into a battle to save Mobius when Robotnik attacks with his newest weapon - the Flying Fortress.
Episode 28
No Hedgehog Is an Island: Chaos Emerald Crisis Part 2
Tue, Oct 5, 199922 mins
Sleet and Dingo escape the Flying Fortress with the Chaos Emerald.
Episode 29
New Echidna in Town: Chaos Emerald Crisis Part 3
Thu, Oct 7, 199922 mins
Knuckles reluctantly makes a deal with Robotnik to turn over Sonic and his family in exchange for finding the Chaos Emerald that will save Mobius.
Episode 30
Wedding Bell Blues
Mon, Oct 4, 199922 mins
Robotnik announces that he will marry Queen Aleena in a plot to become the king of Mobius.
Episode 31
Country Crisis
Mon, Oct 11, 199922 mins
Queen Aleena advises the Hedgehogs to travel to a valley of Mobius so that they can bring about peace between two contingents of the resistance that have split.
Episode 32
Haircraft in Space
Tue, Oct 12, 199922 mins
Robotnik is using the local hairdresser, Doo-bot, to get information on the citizens that are against him.
Episode 33
Healer
Wed, Oct 13, 199922 mins
A self proclaimed scientist has come to Robotropolis with a device that will reverse the effects of Robotnik's robotisizer.
Episode 34
Sonia's Choice
Thu, Oct 14, 199922 mins
Robotnik has arranged a museum exhibit of the Royal family goblets.
Episode 35
The Big Melt
Fri, Oct 15, 199922 mins
The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon.
Episode 36
Sleepers
Mon, Oct 18, 199922 mins
On a mission in a distant sector of Robotropolis, the Hedgehogs are informed that freedom fighters have disappeared and are going to be robotisized.
Episode 37
Bartleby the Prisoner
Tue, Oct 19, 199921 mins
Robotnik captures Bartleby and uses him as bait to capture Sonia.
Episode 38
Art of Destruction
Wed, Oct 20, 199922 mins
Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication policy.
Episode 39
The Pendant
Thu, Oct 21, 199922 mins
The newly discovered Emerald Peninsula is a perfect place for Robotnik to add slaves to his empire.
Episode 40
Virtual Danger
Fri, Oct 22, 199922 mins
Sonic and Manic play a game of virtual reality to enhance their pilot skills.