Erica, now officially in charge of the global Fifth Column, leads them in a high risk attack against Anna. Anna meanwhile, growing closer in her plan to destroy humanity, finds a major obstacle in a certain Live Aboard candidate. And Ryan sneaks back onto the Mothership to try and rescue his daughter. Recurring guest stars include JANE BADLER as Diana, MARK HILDRETH as Joshua, ONA GRAUER (Percy Jackson & the Olympians: The Lightning Thief) as Kerry Eltoff, Christopher Shyer as Marcus, Bret Harrison as Dr. Sidney Miller and MARTIN CUMMINS (Kyle XY, Shattered) as Thomas.
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