At first, everything goes smooooothly. But . . . Flossie gets bus-sick. Goldie goes AWOL. Bathroom breaks are a nightmare. And the whole herd storms the gift store like bulls -- er, cows in a china shop!

Niagara Falls will never be quite the same. If Manny doesn't find a way to get these cows back on the farm, the vacation may turn into an udder disaster!