"The Battle for Angel Island," Part Four. The thrilling conclusion to the Battle of Angel Island saga! As Sonic and his friends work to restore Angel Island, two questions remain: is Neo Metal Sonic truly defeated, and what other trouble is brewing?
The cap on IDW's first year of Sonic the Hedgehog adventures-and the lead-in to year two!
Tails partially repairs Metal Sonic, at Sonic's request.
Metal Sonic returns to Eggman.
After Dr. Starline's failed attempts, Eggman's memories are restored upon seeing Metal Sonic.
Dr. Starline officially becomes Eggman's apprentice, and Rough and Tumble, his henchmen.
Starline is revealed to have acquired the seven Chaos Emeralds, which he give to Eggman.
Knuckles resumes his guardianship of Angel Island, disbanding the Resistance in the process.
Blaze decides to return to her home dimension afer she's seen everyone else home.
Silver decides to remain in Sonic's time, as he believes the future he escaped from hasn't been prevented yet.
Eggman prepares to set his revenge plan into motion.
The issue was originally scheduled to release on December 19, 2018, but it was pushed back due to IDW's limited December release schedule.
On January 2nd, 2019, Editor David Mariotte revealed on the Official IDW Sonic Group that due to a distributor processing mix-up, several of their planned releases for January 9th were pushed back a week including this issue.