On Extant Season 1 Episode 4 Molly and John turn to an unreliable source to help them with Ethan when they want to try to determine if Sparks is telling the truth about Molly's pregnancy.

On a small island that appears safe, both Ethan and Molly find themselves in grave danger. Sam isn't doing so well, either, when Sparks dangles a secret from her past in front of her to keep her quiet.

Yasumoto is up to some interesting tricks as he checks in with some scientists to see how far they've come on a life sustaining compound from a meteor. 

Suffice it to say, things are getting c-r-a-z-y and you don't want to miss a minute -- watch Extant online now!

Watch Extant Season 1 Episode 4 Online

Carissa Pavlica is the managing editor and a staff writer and critic for TV Fanatic. She's a member of the Critic's Choice Association, enjoys mentoring writers, conversing with cats, and passionately discussing the nuances of television and film with anyone who will listen. Follow her on X and email her here at TV Fanatic.