NOTE: Set in Season 3 (Halloween III) for Brooklyn Nine-Nine and Series 2 (post-Christmas Invasion) for Doctor Who

During the yearly Halloween Heist, Detectives Jake Peralta and Amy Santiago meet a mysterious man called the Doctor and his "companion," Rose Tyler. The four learn a mystery about Jake's past that sends the quartet on an adventure through time and space. But Torchwood is rising and the new TARDIS team might be ripped apart...

David Tennant as The Tenth Doctor

The Oncoming Storm

"Detective Peralta, Detective Santiago, would you like to come with us?"

Andy Samberg as Detective Jake Peralta

A Dark Legacy's Light

"Bigger on the inside, title of your sex tape."

Billie Piper as Rose Tyler

The Bad Wolf and Companion to the Doctor

"Fine. I admit it. I fancy the Doctor, but... I'm scared to tell him. How did you tell Jake you liked him?"

Melissa Fumero as Detective Amy Santiago

The Wanderer and Companion to the Detective/Jake Peralta

"Rose and I made our choices a long time ago. I choose you and our friends, Jake."

Noel Clarke as Mickey Smith

The Detective's Second Companion

"Tell the squad I'll miss them. And tell Rosa I still fear her."

Stephanie Beatriz as Detective Rosa Diaz

The Detective Who Fought The Daleks

"You think I'm going to let these pepper pots intimidate me?"

Terry Crews as Detective Sergeant Terry Jeffords

"Is there a yogurt fridge in the TARDIS? If so, I'd like to come along for just a brief trip."

Joe Lo Truglio as Detective Charles Boyle

A Time Lord's Best Friend

"Actually, I already planned out the Doctor and Rose's wedding in my head. The cake is banana flavored with cream cheese frosting."

Chelsea Peretti as Gina Linetti

The Childhood BFF

"I've already started an Instagram page for 'Tenpetals.'"

Andre Braugher as Captain Raymond Holt

The Stern Father Figure

"Doctor, you and Rose may not be cops, but you're still part of the squad now."

Quick note: In this AU, the Doctor and Rose met in 2014. Enjoy!