"Remember the Fallen" The Freedom Fighters are torn apart in the fallout from last issue. Sonic and his friends must deal with the loss in their own way, and it will change the team forever. When Silver the Hedgehog arrives looking for "the traitor," will the weary Sonic give him a chance to speak?

The adventures of Shadow the Hedgehog and the other members of Team Dark.

"Cry Freedom!" The Freedom Fighters are no more. Dr. Eggman moves on to terrorize a Mobius unopposed. King Naugus rules through a campaign of fear. But Sonic isn't about to let all that stop him! A new era is about to begin as two new teams burst onto the scene to save the world! The future begins today in this jumping-on-point issue!

"The Roads We Take": The fallout from the "Iron Dominion" saga continues to settle as our heroes deal with the aftermath and face some tough choices ahead. What secrets will Sonic and Tails find in the seemingly abandoned EggDome? Will Espio finally confront his former teammates, the Chaotix? Will Princess Sally make a final choice of who to set her heart on? The answers to these and other questions await in this intriguing tale!

ALL-NEW DIRECT MARKET-EXCLUSIVE special! There are so many epic battles in the SONIC/MEGA MAN crossover event that the biggest brawls of the bunch have exploded into their very own book! Twelve issues just isn’t enough to contain all the frantic action of “Worlds Unite!” The action spills over into this second special stand-alone issue where an all-star cast of creators bring you an extraordinary all-action issue! Watch as Sonic battles the Deadly Six, Knuckles throws down with Break Man, and Sticks… goes after Roll?! LET’S GET READY TO RUMBLE!

"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!

"Turnabout is Fair Play": The epic anniversary issue you've been waiting for is finally here! Back in Sonic #50, Sonic managed to win against his arch-rival, Dr. Robotnik. In Sonic #175, the doctor got his revenge! Now they duel for the fate of the world! Will freedom come to Mobius? Or will the Eggman Empire rule forever more? Place your bets - but be ready for the startling conclusion! Don't miss this cranium-creasing, brain-bending, mind-blowing saga!