Pathogen (S02E04)

While Chloe’s increasingly strange behavior becomes a cause of concern, Eli is called back to Earth to deal with his mother’s worsening medical condition. On Destiny, a worried Scott makes a shocking discovery while searching Chloe’s quarters: a journal with Alien script. He shows it to Young and Rush who decide to keep a constant eye on Chloe. Rush, recognizing the complexity of the journal’s contents, has Chloe look over some mathematical problems he’s been working on – with surprising results. (iTunes)