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.
| Title | Sonic Underground - Season 1 Episode 36 Sleepers |
|---|---|
| Year | 1999 |
| Genre | Action & Adventure, Animation |
| Country | France, United States of America |
| Studio | TF1, Syndication |
| Cast | Jaleel White, Garry Chalk, Maurice LaMarche, Peter Wilds, Gail Webster, Ian James Corlett |
| Crew | Andy Heyward (Producer) |
| Alternative Titles | Sonic le Rebelle |
| Keyword | musical, robot as menace, rebellion, triplet, based on video game, hedgehog, animal protagonist, band |
| First Air Date | Aug 30, 1999 |
| Last Air date | Oct 22, 1999 |
| Season | 1 Season |
| Episode | 40 Episode |
| Runtime | 25:20 minutes |
| Quality | HD |
| IMDb: | 6.90/ 10 by 145.00 users |
| Popularity | 21.031 |
| Language | English |
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