Archer & Armstrong, Vol. 1 #1 (1992)

Unity - Part 3: Up Against The Wall, Mother
Archer and his peculiar partner are drafted by Armstrong's brother, the Eternal Warrior, to fight in war on the far side of time and space!; But who and what they find there offers ominous clues about what the future may hold for Archer & Armstrong and the final fate of the Valiant Universe.
Release Date: 1992