"Heroes," Part One. It's Team Freedom vs. Team Metal! Elias Acorn may no longer be king, but he's still a symbol of hope in Dr. Eggman's eyes - and that just won't do! As Dr. Eggman launches a two-pronged assault, Sonic and Team Fighters must save Elias from a deadly assassin - his own sister!

The best Sonic stories chosen by the best Sonic creators! Fan-favourite artists and writers pick their favourite Sonic stories from the series' epic 20-year history for this commemorative, full-colour trade paperback collection with a brand-new cover by Sonic legend Patrick Spaziante.

"Heroes," Part Two. Dr. Eggman lays siege to New Mobotropolis once again, but this time with no Sonic around! It's up to the brand new Team Freedom to prove their mettle against Dr. Eggman's Metal Series! Plus – what evil lays in wait, and just what in the world is "Operation: Deadly Cuddles?!”

"Loyalty," Part Two. The clock is ticking as Sonic leads Team Fighters on a desperate rescue mission! Two nations stand on the brink of war, and long-time ally, Lupe, is set to be legionized! Meanwhile, the "Unraveling" storyline begins as Mina's concert of hope draws the ire of the evil Ixis Naugus!

This Double Digest contains OVER 140 PAGES of content, including a special appearance by the classic fan-favorite, Wilbur! Archie drops by Chuck's and discovers the artist at work on some portraits of the gang. Using Chuck's skills to his advantage, Archie stumbles upon the key to getting into any girl's good graces by presenting Chuck's work to them. And Chuck doesn't mind helping Archie get dates since drawing is easy, right? See what happens when Archie's greed pushes the freelance artist too far in "The Big Draw," the first of many hilarious tales from Riverdale!

"At All Costs," Part One. On the eve of the history-making 'Worlds Collide' crossover event, Sonic's Team Fighters have reached the frigid north! The plan: finally rescue Mecha Sally. But will Silver's arrival help or hinder their efforts? Meanwhile, 'Operation: Deadly Cuddles' goes into full effect, menacing Team Freedom! It's the last stop of the road to the Sonic/Mega Man crossover event - with an explosive ending that will rock Sonic's world!

"Two Steps Back" Genesis may be over, but Sonic's 20th Anniversary celebration parties on! As the Genesis Epilogue unfolds, the Death Egg II still menaces New Mobotropolis, and Dr. Eggman has one more sinister trick up his sleeve. It's a desperate race...