Penance: Relentless

In 2008, Marvel released Penance: Relentless, a single-issue comic that centers on the character Penance (Robbie Baldwin) during his time as a member of the Thunderbolts. This story explores his grim, guilt-ridden mission to atone for past tragedies through brutal, vigilante-style justice. Written by Paul Jenkins with art by Paul Gulacy, the issue stands as a dark, introspective character study within the larger Marvel Universe, offering a focused look at a hero wrestling with his own violent methods.