Sonic Underground
S01E23
S01E23· aired 9/29/1999

Hedgehog in the Iron Mask

TMDb0.0
Nexus es61260TMDb ep 1462257TVDb ep 121993

Overview

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.