It happens in every action movie and you're not supposed to realize it. Characters spout what's called Exposition Dialogue about what's gonna happen, and it happens throughout the action. Then they discuss the next/upcoming obstacle, and so on and so forth...
But in THE LAST SHARKNADO... with a title that may or may not be a send-up on the Italian-made disaster THE LAST SHARK... the characters talk about what they're about to do while in the process of actually doing it, making this extra-cheap-looking intentional epilogue a tedious, tiresome adventure that, even though meant to be bad (i.e. so-bad-it's-good), isn't very enjoyable even with a time-traveling device that could have at least been interesting. But no matter where they go... or rather, when they go... from Prehistoric Times to The Revolutionary War to The Wild West to the Beach Blanket Fifties, it's basically the same scene repeating itself. And at this point, the actual Sharknados are not only silly, they have little to do with the plot, overall. Which is a good time to quit.
