As Stranger Things closes in on its final chapter, one truth has become unavoidable: nothing in Hawkins ever began with Eleven. Nor with the Demogorgon. Nor even with Vecna. The roots stretch further back — into war, government secrets, and a cosmic horror older than Hawkins itself.

And that entire origin myth was quietly unveiled not on Netflix, but onstage.

Stranger Things: The First Shadow, the franchise’s ambitious, canon prequel play, charts a vast timeline spanning from 1943 to 1959. And its revelations reshape everything we thought we knew about the Upside Down.

Below, we break down the full chronological timeline — drawing from both the London and Broadway versions of the play — and unpack how its events set the stage for the destruction of Hawkins.

1943 — PROJECT RAINBOW AND THE FIRST CONTACT WITH DIMENSION X

In the midst of World War II, the U.S. military launches Project Rainbow, a classified experiment meant to make warships invisible to radar — inspired by the real-life Montauk mythos.

The experiment succeeds… and catastrophically fails.

The ship doesn’t just vanish — it slips into Dimension X, the primordial predecessor of the Upside Down. A Demogorgon slaughtered the crew, and when the vessel reappears in our world, only one man survives:

Dr. Brenner’s father.

LONDON VERSION:

He dies shortly after returning, whispering the truth about “the other world” to young Brenner — a confession that would haunt and shape the boy forever.

BROADWAY VERSION:

He lives, but only barely — comatose, possessed, and kept alive for years as one of the earliest human hosts of the Mind Flayer’s dark particles.

This is the first recorded human infection in Stranger Things lore.

EARLY 1950s — THE NEVADA EXPERIMENT AND THE BOY IN THE CAVES

At a Nevada research facility, scientists extract the Mind Flayer particles from Brenner’s father and store them in a secured container.

A Soviet mole steals the device — then inexplicably dies near a remote cave system in Nevada.

And fate delivers the box into the hands of an 8-year-old boy wandering alone on his birthday:

Henry Creel.

Curious, innocent, unaware — Henry opens the box.

The particles escape.
His blood changes.
His memories fracture.
He vanishes for 12 hours — pulled into Dimension X.

He returns… but he is no longer the same child.

This moment marks the true birth of the future Vecna.

1958 — THE FIRST INCIDENT AND A FAMILY ON THE RUN

At school in Nevada, Henry violently lashes out:

• London: He breaks a boy’s arm.

• Broadway: He blinds a classmate.

The Creels, terrified and confused, flee the state — desperate to bury the past.

Their destination?

Hawkins, Indiana.

A town forever changed by their arrival.

1959 — HAWKINS HIGH, NEW FRIENDSHIPS, AND THE GIRL WHO SAW HIS HEART

 

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At Hawkins High, Henry meets three teenagers whose lives are about to intertwine with his:

• Joyce Maldonado (dreaming of directing)

• Bob Newby (radio geek)

• Jim Hopper (future cop)

But the person who sees Henry most clearly is Patty Newby, Bob’s adopted younger sister — lonely, eccentric, cruelly neglected, and a mirror to Henry’s aching isolation.

Their connection sparks when Henry hears Patty praying over a radio and whispers “Amen” — using his powers for the first time in Hawkins.

THE SCHOOL PLAY — DARK OF THE MOON

Joyce, refusing another safe production, switches the school play to Dark of the Moon — a gothic story of forbidden love between a witch boy and a human girl.

It becomes prophetic.

Henry and Patty are cast as leads.
Their chemistry is striking — tender but electric.
Joyce watches, stunned: these two lonely kids have found each other.

But Henry’s nightmares grow.
The Mind Flayer whispers.
The visions worsen.

Until tragedy forces its way into reality.

THE INCIDENT WITH THE CAT — AND HOPPER’S SUSPICIONS

While Hopper investigates a missing cat with Walt Henderson (Dustin’s father), Henry — overtaken by the Mind Flayer — uses telekinesis to lethally crush the animal.

He collapses.
He wakes thinking it was a dream.
But Hopper, Joyce, and Bob begin to suspect the truth.

The darkness is waking.

THE FIRST TRAGEDY — AND THE FIRST BETRAYAL

In the school restroom, Henry faces horrifying illusions — which differ between versions:

• London: An apparition of Patty.

• Broadway: Patty’s corpse speaking to him in the Mind Flayer’s voice.

Patty arrives in time to pull him back to reality.
She believes in him.
He kisses her.
Energy explodes through the room.

But the world — and their parents — won’t allow it.

THE CREEL ATTIC — AND THE FIRST DEATH

Henry attempts to help Patty find her biological mother through the Void.

The Mind Flayer hijacks the connection.

Victor Creel, Principal Newby, Hopper, Joyce, and Bob burst into the attic.

Henry — terrified, possessed — loses control.

Principal Newby is thrown into the air, slammed into the ceiling, and mutilated.

He survives… just long enough to gasp:

“Save the boy.”

He knows Henry is fighting something monstrous inside him.

THE ARRIVAL OF DR. BRENNER

Henry awakens in his bed — surrounded by men in hazmat suits, magnetic detectors flickering.

And then the mask comes off.

Dr. Brenner has arrived.

He brings Henry’s lost toy spyglass — proof that he knows what happened in the Nevada caves.

And he wants Henry.

Not as a patient.

As a weapon.

THE DIMENSION X REVELATION — TWO VERSIONS

LONDON:

Brenner forces Henry to recall the Dimension X event — triggering a psychic blast.

BROADWAY:

Brenner wheels in his comatose father, who speaks with the Mind Flayer’s voice:

“You will be a god.”

Henry touches him.
A Gate rips open.
Demobats swarm.
A Demogorgon hand seizes Brenner.

The connection is cut — barely.

Brenner’s father dies as the portal closes.

And Brenner calls him “weak.”

THE NIGHT OF THE CREEL MURDERS

Ordered to kill a death-row inmate to “charge” his powers, Henry refuses — then snaps, killing guards and escaping.

At home, Mind Flayer-controlled Henry slaughters his mother and sister.

Victor Creel survives, wrongly blamed.

Henry flees into the night — hunted, shattered, possessed.

THE FALL OF PATTY NEWBY

Henry runs to find Patty at the theater.
Mind Flayer chaos erupts.
Patty is pushed from the rafters.
She falls.
Her brother Bob screams.

Patty survives — barely — and later reunites with her birth mother in Las Vegas.

Henry disappears into the shadows.

And the newspapers explode with headlines about the “Creel Family Murders.”

1960 — THE QUIET ENDING NOBODY NOTICED

Hopper graduates.
Joyce works two jobs.
They share an almost-kiss — and a last line:

“We’ll always have Mexico.”

Meanwhile, deep inside Hawkins Lab…

Henry Creel is strapped to a chair.
Tortured.
Experimented on.
Harvested.
Preserved.
A living blood bank for MKUltra’s future superchildren.

And then — years later — one final image:

Henry, freed from his restraints.
A line of ten children in front of him — survivors infused with his blood.
And a tiny girl, playing on the floor, looks up.

Eleven.

Henry reaches out.
Smiles gently.
“I’m here to help,” he says.

A flash of light erupts.
A colossal silhouette — Vecna — engulfs them both.

The beginning of the end.