Darkness and Light, Pt. 3

S1, E13: The Hulk and Banner (equipped with an exo-armor) are fighting in the desert, and it seems as if the Hulk is going to win. Banner comes up with a plan to make him madder than he's ever been before, and it works. Hulk collapses to the ground, and so does Banner! It seems that their bodies can't exist without the other, and the only way to prevent death is to reverse the Nutrient Bath. Will the reconvergence work, or will the insane General Ross put a stop to it? And who's that big grey guy?