It's discovered that the Z-vaccine doesn't work. Vasquez gets caught trying to kill Escorpion; Murphy uses mental manipulation to help Roberta.
Quest roles:
Donald Corren(Dr. Kurian), Matt Cedeño(Escorpion), Emilio Rivera(Hector Alvarez), Carl Bressler(Don Francisco Berg), Caroline Slater(Vasquez's Daughter), Gina Gershon(La Reina), Nidhi Ghildayal(Corinne), Luis Arambul(Surviving Party Zero Clan), Matt Clark(Refugee (uncredited)), Sheila Houlahan(La Reina's Assistant), Rosalie Miller(Vasquez's Wife)