الموسم 9، الحلقة 3: Major Zod releases a virus into Metropolis that turns people into zombies and the only way of halting it is to take the blood of a Kryptonite. Lois becomes infected and Chloe asks Clark to donate his blood to put an end to the epidemic but if he does this, Clark will run the risk of making himself known to Zod. Will Clark give blood to save Lois?