Board Thread:Plants vs. Zombies 2/@comment-24922984-20150606222433/@comment-28129931-20150607162706

Leonardo G. wrote: And how could Penny be dumb enough to travel back in time in PREHISTORY in order to get the taco? (Frostbite Caves).

In my headcanon, they returned back in present after Wild west. But then, time paradox stuff starts to happen (pre-world pinatas) because of Zomboss, so the have to time travel to defeat him and fix it.