Murder surfaces in New York. Grant gets the case. The first artifact — a medieval shield at the Metropolitan Museum — is stolen before they can secure it. It will be the last thing they recover. Grant's partner Rick is promoted out. The desk stays empty.

A church robbery at St. Teresa's sends Grant to question the priest. Stephen says nothing useful — there are no women here — but Grant clocks a face he can't get anyone to confirm. Across town, Lucy tips off Murder on the sword's provenance. Murder and Levi run the museum. Grant arrives to find Murder holding a 500-year-old execution sword in the dark. He tells her to drop the weapon. She tells him to drop his. He files it. Says nothing. The sword becomes his in ways he doesn't understand yet.

The ballroom show. The thrall. Grant sees a woman across the room wearing Anne Boleyn's face — it is Mary, and she is watching. After, Levi tells Grant the truth about magical aphasia: he has always been able to perceive more than he should, and something has been keeping him from understanding what he sees. The door is unlocked. Grant can't un-know it.

Ethel's funeral. Murder plays Grant and Ethel's song on the violin. Afterward the bank box — letters, photographs, the outline of something deliberately hidden from him his whole life. He opens the watch. The room fills with light. The dreamwalk. Grant sits at the table now understanding what he's looking at. At the end of the night his phone lights up. Ethel is gone.

The support group. Grant walks in cured of aphasia, knowing what magic is, knowing what a Protector is — and the room clicks into place immediately. He sees Tress across the table, the face from the church, and understands exactly what she is. After, Murder tells him the whole truth. All of it. Grant is unsurprised. He already knew. That's almost worse.

Grant confronts Vega — why am I still here. Why haven’t I been assigned a new partner? The music box opens and Ethel's voice fills the room. The inheritance unlocks fully. He gives Murder the ring. No proposal. No labels. Just a gesture. She doesn't know yet that it will save her life.

The crystal ball is held by Evy Laurent. The price is Giselle and Murder on the runway. In the dressing room Murder uses Ethel’s silver mirror  sees her own copper eyes and understands things five centuries of living didn't give her — the magic at ten, what Anne was trying to tell her, what Grant saw from the very first moment. On the runway she's behind the beat. Grant counts time through the ring. Mary arrives in a cocktail dress with the hourglass. The room stops. Not for them.

The first ritual. Something is missing and they don't know it until Murder's hands combust. Grant unwinds the watch. Time rolls back. They wake up where they started — but now they know. The shield. It was always the shield.

They've been reactive all season. Not anymore. The whole team goes after the shield — Murder, Grant, Levi, Tress, and Colin, who is Ira now, stepping into the light. They get it. The thing lost in episode one comes home.

The second ritual. The right one. With everything in place and everyone who chose to be there. The curse lifts. The spell reveals its second purpose. Mary is contained — then dead. Grant raises the execution sword — the one he watched her steal, the one he filed and never mentioned, Anne Boleyn's sword — and brings it down on the woman wearing Anne's face. Grant and Murder speak vows that aren't a wedding but feel like one. Levi is fully mortal. The hourglass is broken.

"We can't waltz forever, Grant."

"We can damn well try."

In a bedroom at Hatfield House, a modern woman sits across from a young girl. She begins to speak.