Renfield, Dracula's henchman and inmate at the lunatic asylum for decades, longs for a life away from the Count, his various demands, and all of the bloodshed that comes with them.

Sonic, Knuckles, and Tails reunite against a powerful new adversary, Shadow, a mysterious villain with powers unlike anything they have faced before. With their abilities outmatched, Team Sonic must seek out an unlikely alliance.