Two hours of Extant means we were deluged with information.
The big issue in Extant Season 1 Episode 7 was Ethan's ability to adapt and in Extant Season 1 Episode 8 it was Molly's search for her baby with the help of (wait for it) Kryger and KERN!
Yep, Kern wasn't just sucking on gas for nuttin'. During a brief visit from his mother (Emmy nominated actress JoBeth Williams) we learn that aliens (or God) have been chatting with the family for years. It's his worry he's taking the path of his father -- who got sick at the same time age. Except he's not sick and he finally does something about it.