Watch Sonic Underground Season 1 Episode 18 full movie online free in HD with English subtitles – no download needed.
Sonic Underground: Using the essence of a rare plant, Robotnik manages to make Sleet and Dingo fast-- maybe even faster than 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?