Geiger, Vol. 1 by Geoff Johns

In a nuclear-ravaged American West, a lone survivor transformed by radiation haunts the wasteland as a whispered legend, fiercely guarding the site where his family once took shelter. When two hunted siblings flee a tyrannical Vegas warlord and cross his path, he becomes their reluctant protector, facing brutal factions and scavengers while reckoning with his own haunted past and the dangerous power burning inside him.

Purchase from Bookshop.org