One victim, found dead on a London street. Four detectives, in four different time periods, must solve the mystery to protect Britain's future.
You're Dead Already
In 2023, Detective Hasan discovers a dead body in Longharvest Lane, Whitechapel; in 1941 and 1890, two other detectives find the same corpse.
Do You Know Who I Am
Hasan follows new leads in the present; as Hillinghead reluctantly closes his case, Whiteman goes to desperate lengths to hide involvement in his own.
All In Good Time
Connections between the cases start to come into focus; Whiteman encounters an unexpected complication; Hillinghead attends a séance.
Right Up The Wazoo
Hasan discovers she isn't the only detective investigating a murder on Longharvest Lane; in the past and future alike, relationships start to deepen.
We Are One Anothers Ghosts
The past, present and future collide as a set of fingerprints from 1890 are found in 2023; Maplewood uncovers the Commander's true identity.
The World Is Yours
On the day of the explosion, Hasan does everything in her power to help Elias make a life-altering choice; the others wrestle with their consciences.
Catch Me If You Can
Elias finally knows what it means to be loved; he creates the family he's always wanted, but Hillinghead has to suffer for it.
Know You Are Loved
Across decades, the detectives work together to stop Elias from reshaping history; however, words may not be enough to break the loop and save thousands of lives.