In issue #3, having failed to achieve any of their goals, human and mutant Bebop part ways with human and mutant Rocksteady. But by issue #4, the Rocksteadys have come to regret this, realizing how much they cared about Bebop all along. In Verdun, France in the year 1916, The Rocksteadys are caught up in a World War I battle, taking refuge in a German trench. A mortar explosion blows them aside; mutant Rocksteady easily survives this, but human Rocksteady is mortally wounded, tearfully wishing he could have made different choices in life to put Bebop first. Mutant Rocksteady decides he can still do this, and sets off to find Bebop.