[This is Part 2 of the Shadow Quest series]. After raiding Dr. Eggman's base, Shadow the Hedgehog was teleported to the passageway of Dark Gaia's Temple where he should find out when Dark Gaia is about to awaken, what the cause of the awakening is, and put a stop to it before the awakening begins. Who knows what will happen if Dark Gaia is awakened for the second time? (the first time being in Sonic Unleashed)