From the Comedy Central Press Release:
NEW YORK, October 27, 2008 :- Giant guinea pigs are attacking cities all over the world in the exciting conclusion of an all-new, two-part episode of “South Park” titled, “Pandemic 2 : The Startling” premiering on Wednesday, October 29 at 10:00 p.m. (ET/PT) on Comedy Central.
This week, the boys are lost in the Andes Mountains where they discover the startling secret behind the attack of the giant guinea pigs. The boys now have the power to rescue their town and the rest of the world from the onslaught but the Head of Homeland Security stands firmly in their way. Meanwhile, Randy bravely documents the destruction while trying to save his family.