BOX CANYON
by
Mark Laing
Based on a true story.
USCO Registration:
TXU 2-265-054
[email protected]
310-968-4970
FADE IN:
TEXT OVER BLACK:
In 1959 there was a partial meltdown of the SRE (Sodium
Reactor Experiment) at the Santa Susana Field Laboratory, the
nation's first electricity-producing nuclear reactor in the
West San Fernando Valley.
Every two seconds the reactor's heat output doubled. It is
estimated the leakage was more than 400 times worse than the
accident at Three Mile Island. At the time this was not
officially referred to as a nuclear meltdown. It was called an
'excursion'.
The following is based on a true story.
EXT. OUTSIDE LAS VEGAS - NEVADA - DAY
Grainy 16mm publicity black and white movies show a LEGGY
BLONDE parading in an Atomic Mushroom swimsuit made of cotton
wool balls in front of an unfurling atomic mushroom cloud.
Equally grainy but color 16mm film plays as a POLICE
EXHIBITION PISTOL TEAM blithely shoots targets and chalk
sticks out of each other's hands and teeth. It is a dazzling
display of marksmanship - and bravado.
EXT. SANTA SUSANA FIELD LAB - "THE POND" - SIMI VALLEY - DAY
Santa Susana Field Lab TECHNICIANS, 40s, at the "Pond"
casually take turns with a .22 rifle shooting 55-gallon drums.
The barrels explode into the sky. Vaporized.
SUPER: AUGUST 1959 - WEST SAN FERNANDO VALLEY, LOS ANGELES
INT. SANTA SUSANA FIELD LABORATORY (SSFL) - AREA IV - NIGHT
It's a hot night and the STAFF are up late, sweating over the
heat and the reactor. Beads of moisture roll down several
foreheads in unison. A nervous LAUGH as two drops of sweat
hit the control table at the same time.
EXT. SANTA SUSANA FIELD LABORATORY - SIMI HILLS - NIGHT
BOB DALE, 20s, stiff and bird-like, looking with his upright
bob of Brylcreem-wet 50s hair like a nervous woodpecker,
arrives for the graveyard shift.
He immediately notices the men in suits, and senses something
is wrong.
But the steady presence of supervisor TED ARMSTRONG, 50s,
taciturn and unflappable, calms Dale momentarily. Armstrong
sports a permanent hand-rolled cigarette in his mouth.
ARMSTRONG
Status report. If you please.
A thin, phlegmatic TECHNICIAN, 40s, wanders over with a
clipboard.
TECHNICIAN
Automatic SCRAM system's not
functioning.
Armstrong gives him a blank look and Dale looks bewildered.
TECHNICIAN (CONT’D)
Emergency shutdown of a nuclear
reactor by terminating the fission
reaction. As in let's "Scram!"
The levity is lost on Armstrong.
DALE
Thanks. I'm Bob. "The kid."
TECHNICIAN
Yeah, the new kid. Fine time to be
joining us.
ARMSTRONG
Manual SCRAM please.
The manual SCRAM seems to work. But then the reactor starts
overheating again. Something's wrong.
ARMSTRONG (CONT’D)
Try it again.
TECHNICIAN
The decay holding tanks are full
from trying to shut down the
reactor.
The gauges keep rising as the reactor gets hotter.
The only option left to stop the reactor from going critical
is to open the decay holding tanks bypass valve and release
the radioactive gas out of the reactor core into the
atmosphere to shut the reactor down.
ARMSTRONG
The reactor is experiencing an
excursion.
TECHNICIAN
It's getting hotter. If we open the
decay holding tanks bypass valve
and release all the radioactive gas
from the core, it will shut the
reactor down.
There is no typical large concrete containment dome at the
SRE which in the event of an accident would contain the
radioactive gas.
ARMSTRONG
And cover the valley in radioactive
gas.
TECHNICIAN
It's your call.
ARMSTRONG
No, it's going to be Dr. Hox's
call.
The reactor is moments away from going critical. Panic sets
in. Then...BOOM!
Everyone jumps, thinking the reactor has exploded. But it's a
nearby rocket engine test suddenly BLASTING away, lighting up
the whole SSFL.
EXT. SSFL ROCKETDYNE TESTING - AREA II - COCA TEST AREA -
NIGHT
Also being tested at the Santa Susana Field Lab site are the
precursors to the Saturn moon rockets. A tethered Saturn 1B
rocket engine ROARS again, lighting up the sky and shaking
the lab walls.
The technicians allow themselves a brief nervous smile of
relief.
INT. SANTA SUSANA FIELD LABORATORY - SIMI HILLS - NIGHT
The control room of the Sodium Reactor Experiment is agog
with activity.
ARMSTRONG
Which way is the wind blowing?
DALE
East northeast towards Los Angeles
and Simi Valley.
ARMSTRONG
OK, good.
DALE
Mr. Armstrong, it's...
Armstrong is trying to prevent the workers from panicking but
his hands are shaking too as he tries to roll a cigarette.
ARMSTRONG
...It's just an excursion,
overheating. Don't panic.
The alarm BELLS are starting to go crazy now and the SRE is
heating up again, glowing.
More MEN come into the room including DR. MARTIN HOX, 50s,
tall, urbane, and in charge of the SRE reactor, and OTHER
TECHNICIANS, 40s.
Hox may be dripping in the heat but he's as cool as a
cucumber. Hox twiddles his unlit pipe around and around,
never losing tobacco, and seemingly completely unfazed.
But the TECHNICIANS seem frozen in terror, unable to react.
The sweat drips down Hox's brow. Hox notices sweat pouring
down Dale's face then looks up at his own nose and realizes
drops are dripping off his own.
The clear bubble of sweat judders with the reflected image of
the men, frozen as the reactor RUMBLES AND SHAKES.
ARMSTRONG (CONT’D)
Excursion.
HOX
The Sodium Reactor is overheating.
Release the gas from the reactor
core. Now.
ARMSTRONG
Are you crazy, Martin? My family
lives in the Valley.
HOX
Mine too. Open the decay holding
tanks' bypass valve.
The reactor temperature rises, moments away from exploding.
Alarm bells are screaming now with bells BUZZING like a
million giant hornets disturbed in their nest. The
technicians look ready to crack.
Hox trips a switch to open the decay holding tanks' bypass
valve and release all the radioactive gas from the reactor
core into the atmosphere to shut the reactor down. The whole
place shakes and groans. It sounds like the end of the world.
INT. REACTOR CORE ROOM - AREA IV - SSFL - NIGHT
Inside the core unit, the huge 17-ton steel cap lifts and
moves a couple of feet.
INT. SANTA SUSANA FIELD LABORATORY - CONTINUOUS
The reactor finally seems to calm down and the temperature
gauges drop. Bob Dale looks accusingly at Hox.
HOX
Get some tape and seal this place
up. Get it cleaned and restarted.
At the word 'restarted' everyone in the control room stops
momentarily and then continues their work.
Dale gives Hox an imploring look.
HOX (CONT’D)
Get on with it. I'll hold on to
this.
Hox grabs Dale's dosimeter (radiation badge) and pockets it.
TECHNICIAN
Can we tell our wives and families
what happened?
HOX
All of you listen up. Not a word to
anyone. Not a word! We will let the
public know what happened in due
course.
Dale tapes up the cracks around the large double doors that
lead into the high bay area where the reactor is housed. This
keeps radioactive contamination from leaking into the control
room.
He runs the thick tape around the cracks and seals the door,
his hands shaking.
EXT. HIGH ABOVE THE WEST SAN FERNANDO VALLEY - NIGHT
The dry, sprawling suburbia of the western San Fernando
Valley goes hazy as jets of radioactive gas float eastwards.
EXT. HIGH - FAR HIGHER INTO THE JET-STREAM - CONTINUOUS
In the Jet-stream, 35,000 feet up, the radioactive plumes can
be seen traveling east and following the path of the winds.
EXT. CHATSWORTH - SLEEPY SUBURBAN NEIGHBORHOOD - CONTINUOUS
MELISSA and CHAD BUMSTEAD are watching Gunsmoke. It's late so
their SON, 9, and DAUGHTER, 11 are asleep on the couch.
Invisible gases, laced with radioactive particles, creep down
the chimney and through the open screen windows percolating
through the living room like some unseen specter.
The radioactive dust finds its way into their daughter's nose,
who coughs briefly, causing Melissa to turn. Content that her
daughter's OK, she returns to watching Gunsmoke.
EXT. INDIANA CORN FIELD - NIGHT
A BEE stops momentarily to gather some pollen for its larvae
on the self-pollinating corn stalks.
Up high above, the jet stream delivers radioactive particles
which fall onto our bee and the corn husks, seemingly glowing
in the dark. The bee seems to notice, shakes itself, and
moves on to the next stalk.
INT. SANTA SUSANA FIELD LABORATORY CONTROL ROOM - NIGHT
Hox and Armstrong watch the angry sodium reactor. It seems to
be calming down.
HOX
God help us.
ARMSTRONG
"God helps those"...It's going to
be a long night, gentlemen.
DAVID TRINITY, 50s, unflappable, airtight, impeccably dressed
head of the SSFL project, stands in the backlight.
Trinity is unfolding a thin slug of lead, perhaps from a
Linotype machine.
It looks like a stick of gum in his delicate, white hands.
He plops it distractedly into his mouth but, looking around
to make sure no one saw, spits it out quietly.
TRINITY
How much?
ARMSTRONG
About 40 rads.
TRINITY
Clean it up, seal it off, then
start it up again. I'll be in my
office.
Scene by Scene Emotions
suspense Analysis
Executive Summary
Box Canyon generates its most sustained suspense from nuclear catastrophe and cover-up rather than conventional whodunit mechanics. The opening SRE meltdown sequence, the SL-1 reactor revelations, and the climactic race to escape a radiation-filled reactor room keep the audience locked into a countdown where the threat is invisible, institutional, and lethal. The script is most effective when suspense comes from the characters' helplessness—Dale's shaking hands, Richard's radiation exposure, Norm's open-mouth shot—and less effective when it relies on hardboiled tough talk or exposition-heavy confrontation.
Usage Analysis
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fear Analysis
Executive Summary
Box Canyon cultivates two distinct kinds of fear: the historical dread of invisible radiation and the visceral fear of racist state violence. The nuclear scenes—the gas drifting into Chatsworth, the glowing bee, the radioactive barrels, the off-scale meters—create an existential horror that follows the characters even into their homes. The brutal scenes of police brutality and home invasion generate a more immediate, physical terror. The script's finest fear sequences are those that let ordinary domestic life proceed while the audience knows the air is poisonous.
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joy Analysis
Executive Summary
Joy in Box Canyon is precious, hard-won, and mostly confined to intimate domestic moments and the gallows humor of trusted friends. The brightest pleasures are Richard and Vida's playful marriage, the camaraderie of Richard, Norm, and Manny, and the occasional absurdist visual gag—a kitten in a pocket, a woman in a cotton-wool atomic swimsuit, a deadpan Kodak rescue. The script wisely uses small bursts of joy as relief from crushing tension, making the dark moments darker by contrast.
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sadness Analysis
Executive Summary
Sadness is the connective tissue of Box Canyon. It emerges from the historical reality of the SRE meltdown, from the death and mutilation of Darryl Legg, from the Vietnam-style trauma embedded in Richard, and from the systemic racism that wounds every Black character. The script is most sorrowful when it allows quiet images to speak—a child coughing in her sleep, a handless corpse folded in a barrel, a contaminated grave that cannot be moved.
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surprise Analysis
Executive Summary
Box Canyon uses surprise mostly through sudden violence, hidden identities, and unnatural visual reveals. The script's best surprises—a body popping from a barrel, a cigarette case becoming a knuckle-duster, Sydney's camera attack, a wrong-caliber bullet fitting a tin gun—rely on specific visual and narrative mechanics. The weaker surprises are often revelations that the audience has already guessed, like Trinity's involvement or Sydney's twin relationship.
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empathy Analysis
Executive Summary
Box Canyon generates strong empathy by placing ordinary, appealing characters—Bob Dale, Richard, Vida, Norm, Natalia—inside an institutional nightmare. The audience is made to care for them through intimate domestic scenes, shared humor, and explicit vulnerability. The most powerful empathy comes from the script's willingness to show its Black characters enduring humiliation, violence, and grief, and its white characters bearing guilt for a corrupt system.
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