4-th episode of 2-th season "Extant"

What "Extant" 4-th episode about

As Molly works to create a virus that will eradicate alien hybrids, she discovers that aliens are trying to communicate with humans through a hidden message in their DNA. Also, Lucy helps Ethan run away from Charlie in order to help him recover memories of his mother, Molly.

Episode number: 4

Episode name: "Cracking the Code"

Episode release date: 23 july 2015 at 01:00

Status: aired

Rating: 7.3