Serpent's Tooth

S2 E2: Anna and Diana (recurring guest star JANE BADLER) square off in the dark bowels of the mothership, where Diana has been for 15 years without a single glimpse of Anna. Meanwhile, Erica has Tyler's blood analyzed, and learns the V's did something sinister to her while she was pregnant with him. Recurring guest stars also include ROARK CRITCHLOW, REKHA SHARMA, MARK HILDRETH and CHRISTOPHER SHYER.