It's turtles all the way down. Literally.
Join Janice and Dan for an day off in Iowa City. First, Dan has to get some work done though, which involves trying to find a strong enough cell signal in an unfamiliar town, which never ends well for him. Work done, everyone heads into town for some college town exploration.
But before they head into town, everyone goes hiking in the Devonian Fossil Gorge, a 375 million year old fossilized sea bed! And while walking the gorge they spy a very acrobatic turtle.