The episode opens with a dream from Chris, where he remembers the events of Space Colony ARK and the loss of Shadow. He is awakened by Tails who tells him he has just found the signal from a Chaos Emerald. Inside the Crimson Egg, Rouge returns to the secret room she has just discovered and she spots the Red Chaos Emerald which is powering the strange capsule. She tries taking the emerald, but she launches an alarm and at the same time, she discovers that Shadow is currently hibernating inside the capsule. She's found out by Dr. Eggman. The Blue Typhoon follows the Chaos Emerald's signal to a dark, abandoned planet. Sonic, Amy and Knuckles search inside an old castle, while Chris and Cosmo look inside an ancient colony. Sonic's group quickly notices that the castle is a trap. In fact, it's an illusion created by a Metarex. This Metarex suddendly turns the castle into a sandtrap and almost catches Sonic. The Metarex attacks Sonic's group and Chris, who is in the Hyper Tornado. Sonic tries to counter-attack, but he is not able to beat the Metarex. Chris tries his luck and he fails too. At the same moment, in the Egg Carrier, Shadow awakens and he teleports himself to the fight place. He easily defeats the Metarex and he shows his presence to everybody. He looks at Chris, who just said Shadow's name, and he disappears with the Purple Chaos Emerald.
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