The time-spanning adventures of reluctant hero Walker Gabriel continue! Along with a few other surviving time travelers, Chronos finds himself in a besieged Chronopolis. Vyronis, his former ally, has become the mad god of time, ravaging the timeline in his insane wake, and it's all Walker's fault! With time literally running out, Walker, pushing his emerging powers to the limit, makes a last-ditch attempt to undo the disaster!