Nick is forced into an alliance with a vampire; Marcus looks into Teresa's disappearance; a recent discovery threatens Andie's new relationship.

Nick asks Dylan for help finding the killer when a neighbor is murdered by a vampire; Claire tries to end her arrangement with Christian; Andie decides to not take her medicine.

Dylan and Nick search for a damaging secret about Frank; social politics threaten Sarah's pool party; Devon experiments with Internet dating.

Dylan and Claire ask Nick for help after Emily is kidnapped. Nick's search will lead him outside The Gates and to some horrific truths about their vampire past. Sarah, who's feeling left out, presses Nick for details about the case. The realities of Brett's relationship with Andie surface while Charlie becomes aware that those around him are not human.

Vanessa and Frank's latest decision may just tear apart The Gates. Sarah shuns those around her and seeks temporary relief with Devon after learning that The Gates abounds with Supernaturals, but she's going to learn that Devon is the one person she can't trust. Brett is enraged that Andie and Charlie are back together but his extreme actions to remedy this will have far-reaching effects.