Sonic Underground
S01E25 Flying Fortress (Chaos Emerald Crisis, Part 1)
What begins as a relaxing getaway for Sonic, Manic, and Sonia quickly transforms into a fierce struggle to protect Mobius when Robotnik launches his latest creation—the Flying Fortress. Determined to disable the weapon, Sonic attempts to infiltrate the ship, convinced that dismantling its reactor will do the trick. However, his plan backfires, prompting him to seek Knuckles' assistance, as he suspects the power source of the fortress is tied to the Chaos Emerald.
Season 1 Episodes
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Beginnings (Origins, Part 1)
To Catch a Queen
Mobodoon
The Price of Freedom
Underground Masquerade
Tangled Webs
The Deepest Fear
Who Do You Think You Are
The Last Resort
Come Out Wherever You Are
Winner Fakes All
A Hedgehog's Home Is Her Castle
Artifact
Bug!
Sonic Tonic
Friend or Foe?
Head Games
When in Rome...
The Jewel of the Crown
Three Hedgehogs and a Baby
Dunes Day
Mummy Dearest
Hedgehog in the Iron Mask
Six Is a Crowd
Flying Fortress (Chaos Emerald Crisis, Part 1)
Wedding Bell Blues
No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Getting to Know You (Origins, Part 2)
New Echidna in Town (Chaos Emerald Crisis, Part 3)
Harmony or Something (Origins, Part 3)
Country Crisis
Haircraft in Space
Healer
Sonia's Choice
The Big Melt
Sleepers
Bartleby the Prisoner
The Art of Destruction
The Pendant
Virtual Danger