Idea & design works Sonic the hedgehog, volume 5: crisis city (Idea & Design Works)

Can Sonic save a city in crisis... Or has he finally met his match$26 Dr. Eggman has launched his most extreme plan yet, and Sonic's already racing to catch up! As Dr. Eggman drowns entire cities in his Metal Virus, creating hoards of Zombots--civilians infected with the virus to become zombified machines--Sonic himself struggles to keep his infection in check!

And when Sonic's friends start falling victim, it's clear no one is safe! Collects issues #17-20 of the Sonic the Hedgehog series.