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Release Date: October 18, 1999
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Sonic Underground

1999

Sleepers 1 Season 36 Episode

6.8

On a mission in a distant sector of Robotropolis, the Hedgehogs are informed that freedom fighters have disappeared and are going to be roboticized. Sonic races to save his friends, but he is too late. The group of freedom fighters have been robotisized, including Cyrus' father.

Country
France
Genre
Animation
Released
30 Aug, 1999
Main Cast
Maurice LaMarche , Garry Chalk , Sam Vincent , Stevie Vallance , Jaleel White
Supporting Cast
Ian James Corlett
robot as menace rebellion triplet hedgehog band
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Episode #1
Beginnings (Origins, Part 1)
Episode #2
To Catch a Queen
Episode #3
Mobodoon
Episode #4
The Price of Freedom
Episode #5
Underground Masquerade
Episode #6
Tangled Webs
Episode #7
The Deepest Fear
Episode #8
Who Do You Think You Are
Episode #9
The Last Resort
Episode #10
Come Out Wherever You Are
Episode #11
Winner Fakes All
Episode #12
A Hedgehog's Home Is Her Castle
Episode #13
Artifact
Episode #14
Bug!
Episode #15
Sonic Tonic
Episode #16
Friend or Foe?
Episode #17
Head Games
Episode #18
When in Rome...
Episode #19
The Jewel of the Crown
Episode #20
Three Hedgehogs and a Baby
Episode #21
Dunes Day
Episode #22
Mummy Dearest
Episode #23
Hedgehog in the Iron Mask
Episode #24
Six Is a Crowd
Episode #25
Flying Fortress (Chaos Emerald Crisis, Part 1)
Episode #26
Wedding Bell Blues
Episode #27
No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Episode #28
Getting to Know You (Origins, Part 2)
Episode #29
New Echidna in Town (Chaos Emerald Crisis, Part 3)
Episode #30
Harmony or Something (Origins, Part 3)
Episode #31
Country Crisis
Episode #32
Haircraft in Space
Episode #33
Healer
Episode #34
Sonia's Choice
Episode #35
The Big Melt
Episode #36
Sleepers
Episode #37
Bartleby the Prisoner
Episode #38
The Art of Destruction
Episode #39
The Pendant
Episode #40
Virtual Danger
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