Watch Sonic Underground

TV-Y7
1999
2 Seasons
6.1 (2,956)

Sonic Underground occurs in a separate universe from any other Sonic the Hedgehog universe. The wise and kind ruler of Mobius, Queen Aleena, is dethroned by Dr. Robotnik with his machine armada. After seizing control, Robotnik exiles the royal family, sending the children into hiding. In order to ensure the dynasty's survival, Aleena leaves her three kids: Sonic, Manic, and Sonia (all three of which are voiced by Sonic's first voice actor, Jaleel White) with the Oracle of Delphius. Her reasons for doing so revolve around a prophecy that they will all rejoin to form a Council of Four. As this Council, they will have the power to restore order and regain their ruler ship of Mobius. In the interim, Dr. Robotnik has established an autocracy, legally able to turn dissenters and rebels into robotic drones, as well as extorting funds from the surviving nobility. When the three children come of age, the Oracle explains the prophecy to them. Emboldened with this information, Sonic, Manic, and Sonia head off on a quest across Mobius in search of their mother. Dr. Robotnik has hired a pair of bounty hunters, Sleet and Dingo, who repeatedly try to catch the children and thus negate the prophecy. Sonic, Manic, and Sonia each possess a magical medallion that can become a musical instrument, as well as weapons when the three are together in harmony. Sonic can access an electric guitar, Sonia can utilize a keyboard which also works as a smoke machine, and Manic medallion can transform into an "earth controlling" drum set with cymbals shown to deflect laser blasts. Each of the medallions can also be used to fire as if it were a laser gun. As the amulets can also metamorphose into musical instruments, the triplets use them to perform musical concerts, usually at least once per episode, as "Sonic Underground," an underground and illegal rock group.

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Seasons

2 1

22. Season 2, Episode 22

21. Season 2, Episode 21

The newly discovered Emerald Peninsula is a perfect place for Robotnik to add slaves to his empire. Sonic, Sonia and Manic are alerted to Robotnik's plan to transplant the peninsulas inhabitants and turn to a fortune teller for help. The mystic advises Sonia of a pendant that could reveal the answer

20. Season 2, Episode 20

October 22, 1999

Sonic and Manic play a game of virtual reality to enhance their pilot skills. When the two brothers decide to put their practice to use, they fly in a successful mission that intercepts a supply ship from Robotnik. To put the Hedgehogs game to an end, Robotnik decides to invade the simulated world and provoke a less successful outcome for Sonic and Manic. Once the virtual danger of the game becomes a reality, it is up to Sonia to play the game to save her brothers.

19. Season 2, Episode 19

May 29, 2000

The newly discovered Emerald Peninsula is a perfect place for Robotnik to add slaves to his empire. Sonic, Sonia and Manic are alerted of Robotnik's plan to transplant the peninsula's inhabitants and turn to a fortune teller for help. The mystic advises Sonia of a pendant that could reveal the answer to stopping Robotnik. One half of the pendent is discovered, but Sonia suddenly has a reaction from the pendant's side effects. Sonic and Manic must quickly find the other half to save their sister before she disappears.

18. Season 2, Episode 18

May 29, 2000

Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication policy. Art's objective is to destroy everything in sight, including Sonic, Manic and Sonia. The giant mechanical beast is seemingly unstoppable until he overhears the musical melodies of the Underground band. The music tames the savage beast and the Hedgehogs take advantage of this sudden change in the robots mood and turns Robotnik's weapon against him.

17. Season 2, Episode 17

May 22, 2000

Robotnik captures Bartleby and uses him as bait to capture Sonia. While the Hedgehogs are busy sealing Robotnik's mining operation, Sonia slips away to aid her friend in need. Once Sonic and Manic seal off the mines, they become aware that their sister is missing and race to save Bartleby and Sonia.

16. Season 2, Episode 16

May 22, 2000

On a mission in a distant sector of Robotropolis, the Hedgehogs are informed that freedom fighters have disappeared and are going to be robotisized. Sonic races to save his friends, but he is too late. The group of freedom fighters have been robotisized, including Cyrus' father. Cyrus and the Hedgehogs, now motivated by the injustice of what has happened, attempt to end the construction of the potent sleeper bombs that enabled Robotnik to capture a vital portion of the resistance.

15. Season 2, Episode 15

October 15, 1999

The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon. Sonic, Manic and Sonia must travel to the arctic where the weapon is located. They are shocked as the submarine melts the icy landscape from under their feet. The Hedgehogs then scurry to locate the lethal submarine before the entire planet is completely submerged underwater.

14. Season 2, Episode 14

October 14, 1999

Robotnik has arranged a museum exhibit of the Royal family goblets. Knowing that Sonic, Sonia and Manic will want to reclaim their family's treasures, Robotnik expects the heirlooms will serve as perfect bait to finally capture the Hedgehogs. Sonic and his siblings are aware that this is most likely a trap and devise a counter plan of their own to avoid getting caught. The Hedgehog's mission falls apart and when Sonic and Manic are taken prisoner, Sonia must choose between which brother she should risk rescuing from the robotization chamber first, Manic or Sonic.

13. Season 2, Episode 13

May 1, 2000

A self proclaimed scientist has come to Robotropolis with a device that will reverse the effects of Robotnik's robotisizer. Sonia, Manic and Sonia attend a demonstration of this new technology where Sonia decides she can use it to help her rescue a friend. Sonic, on the other hand, is skeptical that this machine is the real thing and decides to investigate. Robotnik kidnaps the inventor, and forces him to confess that he is a hoax. Robotnik will spare his life only if he agrees to use his machine as a robotisizer. Sonic learns of this deal and quickly rescues Sonia before she becomes Robotnik's next victim.

12. Haircraft in Flight

January 1, 1988

Robotnik is using the local hairdresser, Doo-bot, to get information on the citizens that are against him. Sonia becomes a victim of the Doo-bots trance during a shampoo and while under the spell, divulges important information that could lead Robotnik to a secret base. The Hedgehogs learn that the Doo-bot is equipped with a recording device and dash to retrieve the tape from the Doo-bot before the secret location is disclosed.

11. Season 2, Episode 11

October 11, 1999

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. In the meantime, Robotnik is able to build a dam that is dangerous to the peoples land because of the lack of a cohesive effort to end the construction. Sonic, Manic and Sonia use the power of their music to settle the feud.

10. Harmony of Something

January 1, 1988

Manic, Sonic and Sonia must end their training early when Robotnik threatens the Oracle and takes a member of the resistance hostage. During the rescue mission, the Hedgehogs fall into trouble and begin to place blame upon each other for everything that has gone awry. Queen Aleena then intervenes with an important message for her children that they must learn to work together and derive strength from their willingness to help others.

9. New Echinda in Town

May 4, 2000

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. Knuckles soon regrets that he ever trusted the evil dictator after Robotnik begins to follow through on his plans to robotisize the Hedgehogs. Once Knuckles saves his friends from doom, a larger challenge is waiting for them. Dingo has swallowed an emerald and is now a giant monster creating havoc all over the planet. The Hedgehogs and Robotnik have to stop the mutant creature before Mobius falls into certain oblivion.

8. Getting to Know You

December 9, 1999

The Hedgehogs begin to learn the important lessons of what it takes to be a freedom fighter. The Oracle provides teachers to guide Sonic, Manic and Sonia to develop the necessary skills to recognize the power that comes from within. The Hedgehogs also discover the hidden magical force of the power medallions as they grow to understand that teamwork will serve them best in averting the dangers that await them.

7. No Hedgehog is an Island

January 1, 1988

Sleet and Dingo escape the Flying Fortress with the Chaos Emerald. In a fight over who will control the Emerald's power, Sleet and Dingo drop and break the Emerald in two. Instantly, a rash of earthquakes and other natural disasters are sparked by the emerald's energy. Knuckles and the Hedgehogs turn to a relative of Knuckles for answers of how to stop Mobius from being slowly devoured by the emerald's force and find that the only solution to end the obliteration of Mobius is to make a deal with their arch rival Robotnik.

6. Beginnings

January 1, 1988

The history of the Underground is told in detail, from the fall of Mobotropolis to the rise of Robotnik. Included, is a prophecy, as told by the Oracle of Delphius, that caused Queen Aleena to give up her own children so that all people of Mobotropolis could one day be redeemed. As the Queen's children grow and witness tragedy all around them, they soon learn that they are not alone in their urge to fight the evil Robotnik, they have each other, and that fighting for freedom isn't only their duty, but their destiny.

5. Flying Fortress

January 1, 1988

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. Sonic investigates the ship thinking the weapon can be destroyed by removing its reactor, however his efforts fail and he goes to Knuckles for help, because he believes the weapon is powered by the Chaos Emerald. Knuckles agrees to aid him suppressing the fear that the Floating Island will be left unprotected. Knuckles and Sonic locate power source only to have it taken by Sleet and Dingo before the Hedgehogs can reach it.

March 1, 2000

The Oracle advises the Hedgehogs to undertake a mission which could reveal answers about their future. Sonic, Manic and Sonia are thrown into a universe that almost seems to parallel their own, however in this dimension, they are not the in the Underground, the Hedgehogs are the rulers of Mobius. Confused by this world, they begin to explore and suddenly find themselves confronted by a corrupted version of themselves.

3. The Hedgehog in an Iron Mask

August 3, 2000

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. This stranger is actually being used as bait for another attempt by Robotnik to capture them. The stranger creates a rift between the siblings, which leaves the Underground disbanded, vulnerable and ultimately trapped. The Hedgehogs find a way to escape the prison walls that held their mother captive many years ago.

2. Mummy, Dearest

January 3, 2000

Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest. After the book is reclaimed, they discover that this book contains directions to a scroll that could be an important tool to overthrow Robotnik. The scroll is heavily protected, but Sonic leads the group in the right direction where they eventually encounter the royal Aman-Rapi, who once awakened, demands the price of a song in exchange for the scroll.

1. Dunes Day

January 1, 1988

Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe of nomads for the Resistance. The Hedgehogs van breaks down and they are saved by the tribesman. Once they return to the camp, Manic discovers that the chief has been robotisized, which is a secret that could have the chief banished from the tribe. Manic is then captured and taken from the camp, unbeknownst to Sonic, Sonia and the chief. Sonia and Sonic get to the bottom of why their brother is missing and rush to find him before it is too late.

Description

When the three children come of age, the Oracle explains the prophecy to them. Emboldened with this information, Sonic, Manic, and Sonia head off on a quest across Mobius in search of their mother. Dr. Robotnik has hired a pair of bounty hunters, Sleet and Dingo, who repeatedly try to catch the children and thus negate the prophecy.

Sonic, Manic, and Sonia each possess a magical medallion that can become a musical instrument, as well as weapons when the three are together in harmony. Sonic can access an electric guitar, Sonia can utilize a keyboard which also works as a smoke machine, and Manic medallion can transform into an "earth controlling" drum set with cymbals shown to deflect laser blasts. Each of the medallions can also be used to fire as if it were a laser gun. As the amulets can also metamorphose into musical instruments, the triplets use them to perform musical concerts, usually at least once per episode, as "Sonic Underground," an underground and illegal rock group.

Sonic Underground is a series that is currently running and has 2 seasons (102 episodes). The series first aired on August 30, 1999.

Where to Watch Sonic Underground

Sonic Underground is available for streaming on the UPN website, both individual episodes and full seasons. You can also watch Sonic Underground on demand at Apple TV+, Paramount+, Vudu, The Roku Channel Free, Google Play, Hoopla, Apple TV, Amazon Prime and Pluto TV.