Extant - Season 2 Episode 04

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    2x04 | Cracking the Code

    July 23,2015, 04:00AM

    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.