It's Mike's penultimate episode! The boys are getting ready to send him off and what better way to do it then by bringing back one of the #family to redo an old topic?

Mike gets to blast off with arguments about astronauts! And Producer Grant--that's right Producer Grant--gets to club facts to death by discussing cavemen. Ryan and Nick judge and then get thrown off by a twist!

Points include: neanderthals, Greta Thunberg, emojis, Crossfit, Apollo 11, Uber, thinking on one's feet, hitting fiances in the head with a mallet, heavy machinery, the hair of a prehistoric man, and the moon.

How will the electoral college affect Mike? How does Ryan order an Uber? How hairy is Nick? And how many times has Grant died?

It's Cavemen vs Astronauts REDUX!