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Sonic Underground S01E36 - Sleepers

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.
Showing on Sonic Underground · Channel 33.
Watch Sonic Underground S01E36 - Sleepers on SCARTLEAD.TV
- Sonic Underground S01E01 - Beginnings
- Sonic Underground S01E02 - Getting to Know You
- Sonic Underground S01E03 - Harmony or Something
- Sonic Underground S01E04 - To Catch a Queen
- Sonic Underground S01E05 - Mobodoon
- Sonic Underground S01E06 - The Price of Freedom
- Sonic Underground S01E07 - Underground Masquerade
- Sonic Underground S01E08 - Tangled Webs
- Sonic Underground S01E09 - The Deepest Fear
- Sonic Underground S01E10 - Who Do You Think You Are
- Sonic Underground S01E11 - The Last Resort
- Sonic Underground S01E12 - Come Out Wherever You Are