Episode 24: Nothing Ventured, Nothing Gained.

As Kotetsu and Barnaby struggle against H-01 whilst waiting for their powers to recharge, Rotwang continues to stir up the heroes to try and make them sacrifice the others, hiding the fact that pressing the button on their collars will kill them all anyway. Although Kotetsu and Barnaby continue to struggle even when they activate their powers, Karina's faith in them helps calm the other heroes whilst Kaede, using Karina's powers, manages to stop Rotwang and rescue the heroes. Kotetsu manages to hold H-01 down, allowing Barnaby to destroy it with its own weapon. However, due to his power running out, Kotetsu is unable to dodge the hit in time and receives apparently fatal injuries, much to the horror of Barnaby, Kaede and the other heroes.