Journey to the
S1, E9: Journey to the Center of the Bat!: Batman is poisoned by Chemo, who is under the control of the Brain, and Atom and Aquaman shrink down to fight the virus in his bloodstream.

S1, E9: Journey to the Center of the Bat!: Batman is poisoned by Chemo, who is under the control of the Brain, and Atom and Aquaman shrink down to fight the virus in his bloodstream.