Radiant Black, Vol. 5: Crisis

THE CATALYST WAR BEGINS! As an alien army vaster than the stars descends on Earth, Nathan and Marshall have to make the biggest decision of their lives: which of them will be Radiant Black? Two timelines will be tested in the trials of THE CATALYST WAR—and neither will escape unchanged!

RADIANT BLACK is a Massive-Verse series.
Collects RADIANT BLACK #25 A & B, #26, #26. 5, #27, and #27. 5