Watch Sonic Underground Episode 17 English dubbed online free episodes with HQ / high quality. Stream Anime Sonic Underground Episode 17 English version Sonic Tonic Using the essence of a rare plant Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at speeds rivaling, or perhaps even surpassing, Sonic. The Sonic Underground manage to get hold of it but can Sonia and Manic resist the temptation of taking the potion themselves and being as fast as Sonic?
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