Year One: Fantastic Four #2

What happens when the Earth is invaded by shape shifting aliens known as....Skrulls?  Can the Fantastic Four defeat them even after the aliens have turned the whole world against them?  Issue #1 would suggest the answer is likely no, but they keep publishing the title for another 50 years, so I'm guessing the answer is yes!  Listen to how it happens and find out how cows are involved!