1. James Wolk as Jackson Oz and Nora Arnezeder as Chloe Tousignant.
Heading into Zoo's "Emotional Contagion," the team is on the run as fugitives. Now they must fly to Zambia to gather Leopard DNA in order to manufacture a cure for the abnormal behavior that's affecting animals worldwide. When it's time to leave, they reach out to animal rights activist Ray Endicott (guest star Warren Christie) to get safe passage out of the country. Also, Chloe makes the ultimate sacrifice to avoid further bloodshed.