Tyler and Kinsey feel torn when they figure out why Nina is acting strangely. Bode meets Rufus and Ellie's houseguest. Dodge zeroes in on the Omega Key.

The Locke family faces their worst nightmare when the person responsible for shattering their lives resurfaces and demands one of the keys.

The battle over the Omega Key leads to decisions that can't be undone — and a dangerous door that promises plenty of trouble ahead.

As pieces begin to click into place for the Locke siblings, Ellie opens up about her connection to Dodge, and Kinsey comes clean with her friends.

Gabe insinuates himself into Tyler's search for the Memory Key as Kinsey resolves to find out what's going on with Eden. Bode visits an old friend.

Kinsey uses a key to seek vengeance on a school bully. A troubled Nina finds a sympathetic ear. A long-buried memory casts Rendell in a new light.

Locating a powerful new key sends Bode's spirit soaring. Tyler's simmering rage boils over. Kinsey realizes just how much her fear is holding her back.

Escalating threats and a devastating loss lead the Lockes into a ferocious showdown with Dodge. Back at Keyhouse, Bode confronts a shocking visitor.

Bode looks for the key that will let him see his dad, Nina confronts bad memories, and Kinsey gathers with the Savinis for an emotional send-off.

Duncan's wedding day brings a welcome surprise — and provides the perfect opportunity for uninvited guests to search the house. Bode discovers a new key.

Gabe forges an unholy alliance with Eden. Kinsey prepares for the premiere of the Savini Squad's horror film. Duncan arrives at Keyhouse with big news.

Bode's sudden attitude change worries his family and friends, Tyler catches up with a co-worker, and Gideon forms an unholy alliance.

A mysterious snow globe unleashes a double dose of trouble at Keyhouse, leaving Bode out in the cold as Kinsey and Nina try to retrieve a stolen key.

With Duncan's emotional state deteriorating, Gabe confronts one of the Lockes, Tyler surprises Jackie on her birthday, and Kinsey faces up to her fears.

Suspicions about Bode's behavior come to a head after an unsettling discovery, while Gideon's patience runs out in his plot to possess the keys.

Gideon forces Ellie to take him to the missing key, putting an old classmate's life on the line. Nina and Bode attempt to unlock the Harlequin Chest.