"Surge is angry and plots her comeback, but she needs more power, and she needs it now. Sonic's friends race to stop her rampage, but there's something different about her. As things start to look dire for Sonic and Tails, they find support in the form of Surge's old sidekick, Kit! He's on their side...right? But Surge's plan is bigger than anyone thought! With a little help, she's going to turn the place of her greatest torment into the place of...

First, "Untold Tales of the Metal Virus!" As Dr. Eggman's technological plague sweeps the world, some of Sonic's greatest allies and most sinister foes must face the threat alone! Witness wrenching tragedies and surprising acts of bravery in six stories from the darkest days of the virus.

On a recon mission with the new Diamond Cutters--Tangle, Whisper, and Lanolin--Sonic discovers that the Eggperial City is harnessing the resources around it to grow ever larger. The Diamond Cutters are still getting the hang of working together which leads to trouble when they get trapped. Alone against an army of badniks and a self-replicating city, Sonic calls for back-up and gets more than he bargained for: Tails, Amy, Blaze, and Silver all answer...

In the aftermath of his latest battle with Dr. Eggman, Sonic and his friends must defend small villages around the world against robot attacks.

"ROAD TRIP!!! Sonic's friends hit the pavement for some much needed R&R after months of constant excitement, but a hero's work is never done! Amy, Jewel, Tangle, and Belle are heading off on a well-deserved camping trip. Between Dr. Eggman, Dr. Starline, and the Deadly Six, life has been stressful, so they're hoping to get a little peace. Unfortunately, a dangerous wildfire has other plans. Can our heroines extinguish the flames--and the group tension--before...

"With Dr. Eggman and Surge subdued for now, Sonic and friends have a chance to relax, reset, and plan for the future. Or so they hope. If anything can be counted on around Sonic, it's that new misadventures are just waiting to happen! To start, Amy visits Knuckles on Angel Island to return a relic. The island, as always, has a few surprises in store for them as they catch up. Meanwhile, Mimic is putting together the purrfect disguise to infiltrate...

"After assembling a squad of bad guys, kidnapping Belle, starting a forest fire, and causing chaos in Central City, Starline is finally ready to unleash his monstrous imposters: Surge and Kit! Will his meticulous planning be enough to defeat Sonic and Dr. Eggman? And, in the wake of the climactic battle, both the heroes and bad guys need some time to heal and regroup... except Dr. Eggman, of course, who is always ready to destroy that darn hedgehog....

"There's a new kid on the block! And a new ... tower? While Tangle tries to initiate the new recruit, Belle, into the Restoration, Sonic, Tails, and Amy investigate a mysterious structure that has popped up. Turns out, it's a maze of twisting corridors and crazy challenges! Can they pass this test with flying colors?"--

"Following their last battle, Dr. Eggman's been mysteriously absent from Sonic's life. What shocking secret will Sonic discover when he learns the bad doctor's whereabouts? Plus, Sonic isn't the only one looking for Eggman--so's his old frenemy Shadow the Hedgehog! There are twists and turns in the course of this high-speed, action-packed mystery-adventure! But with a little help from his friends--including a new ally--Sonic's fast enough to overcome...