The Monohan family move into their new home in The Gates, an exclusive community of perfectly manicured lawns and friendly neighbors. But things grow complicated when Nick Monohan, the new Chief of Police, has to investigate those neighbors in a missing persons case during his first day on the job. Claire and Dylan Radcliff fight to hide not only their involvement in Nick's case, but their rather unusual family secret. Meanwhile, Charlie Monohan tries to adjust to his new school, finding a friend in the beautiful but unavailable Andie Bates. Just when his family is finally settling in, Nick's world is rocked by a late-night caller with some terrible news.

Nick investigates the death of the last Chief of Police, disturbed by what he's starting to discover about The Gates. Claire Radcliff deals with the repercussions from her recent transgression, fighting to put the past behind her. At school, Andie struggles to sort out her blossoming feelings for Charlie. And Brett works hard to keep dating Andie while fighting off Lukas' tempting offer to "come running" .

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.

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.