When Uncle Chuck's "bug" reveals Robotnik's search for the legendary Deep Power Stones, he informs Sally, who tries to retrieve data regarding the Royal Family Secret. But she's denied access via a time-encoded lock-out. Meanwhile, on a training mission, Sonic and Tails happen upon Snively's Drood Henge dig and Tails is captured. After rescuing him, Sonic zooms back to camp and tricks Nicole into revealing the Drood Henge
facts: joined in a "seamless stone", the Power Stones are a source of inestimable energy; when joined by jagged edges, they create incredible destruction. When the Freedom Fighters find out Robotnik has the first Stone, they realize he must never obtain the Second. They formulate a plan to trick Robotnik into believing they have found the Second Stone and when he tries to take it, Sonic destroys it in the Lava Springs. After finding the real Second Stone, Sally congratulates Sonic, then discovers the plan was devised by their newest Freedom Fighter ... Tails.