Ep. 11: Time Molcar
A Time Molcar (styled after the DeLorean from the Back to the Future movie franchise) arrives at a prehistoric ice age with its passengers, its mad scientist inventor and his young female companion, to know the ways of prehistoric man and the associated theory of evolution. Their arrival, however, extinguishes a large bonfire, earning the ire of the tribesmen that set it. The tribesmen chase and eventually corner the time traveling group to a steep rock formation, but the former group is scared off by the appearance of a large (live action) guinea pig, a possible ancestor to all Molcars. The time travel group thank the giant guinea pig and are about to leave when a snowstorm hits. Not wanting to leave the guinea pig out in the cold, the mad scientist and the girl have it wear a large striped sweater for it to wear. This random act of kindness, however, unwittingly alters the past as upon the time traveling group's return to the present time, every Molcar they encounter is clad in a sweater similar to the one they gave to the prehistoric guinea pig. (Source: Wikipedia)