1x34 - Sonic Underground

Robotnik has arranged a museum exhibit of the Royal family goblets. Knowing that Sonic, Sonia and Manic will want to reclaim their family's treasures, Robotnik expects the heirlooms will serve as perfect bait to finally capture the Hedgehogs. Sonic and his siblings are aware that this is most likely a trap and devise a counter plan of their own to avoid getting caught.