Sonic Underground Season 2 Episode 3 The Hedgehog in an Iron Mask

The Hedgehogs latest quest to find their mother takes them to the prison tower where they encounter a masked stranger who insists he is family. This stranger is actually being used as bait for another attempt by Robotnik to capture them. The stranger creates a rift between the siblings, which leaves the Underground disbanded, vulnerable and ultimately trapped. The Hedgehogs find a way to escape the prison walls that held their mother captive many years ago.