The Back to the Future plot explained in one line: on 26 October 1985 Marty McFly is thrown thirty years back to 5 November 1955, accidentally stops his own parents meeting, and has to repair their first night together before a lightning strike at 10:04pm on 12 November sends him home. That is the whole of the 1985 film, and it is the reason it suits a tube map better than almost anything else I have plotted. Two weeks, thirty years apart, sharing a handful of stations.
I drew this one by watching the film on stop and start, noting every scene in the order it happens, and giving each character their own line. What follows is what that process turned up about the structure, rather than a plot summary you could get anywhere.
Back to the Future plot explained: why it needed two dates, not one
Most film plot maps I draw run in one direction, because most films do. This one refused to. The story leaves 26 October 1985 and arrives on 5 November 1955, and both of those weeks have to stay legible at the same time.
Marty McFly is the only line that runs unbroken through both. Everyone else either belongs to one era or appears twice, thirty years apart, as a different version of themselves. Once I accepted that, the tube map language did the rest of the work, because a transit diagram is built for exactly this problem: two separate routes that meet at a small number of shared points.
The clock tower is the only station carrying a time as well as a date
Saturday 12 November 1955, 10:04pm. The film gives you that twice, once on the flyer the woman hands Marty outside the courthouse in 1985, and once when Doc works out that the lightning is the only power source big enough for 1.21 gigawatts.
Everything else on the 1955 side is measured backwards from that one fixed point. Doc has a week, and the map shows it as a week, with the stations tightening as the deadline closes. These six do the structural work.
| Date | Station | Why it matters on the map |
|---|---|---|
| 26 October 1985 | Twin Pines Mall | 88mph, and the 1985 route stops dead |
| 5 November 1955 | Peabody farm | Arrival, and one pine tree fewer |
| 5 November 1955 | Doc Brown's house | The 1955 Doc line joins Marty's |
| 12 November 1955 | Enchantment Under the Sea | George's line changes direction |
| 12 November 1955, 10:04pm | Hill Valley clock tower | The lightning strike, and the timelines rejoin |
| 26 October 1985 | Lone Pine Mall | Same car park, different name |
Doc Brown's entire line begins with a fall in a bathroom
Doc tells Marty that on 5 November 1955 he was standing on the edge of his toilet hanging a clock, slipped, hit his head, and came round with the flux capacitor in his mind. That single moment is the origin of everything the film then does.
What makes it worth a station is the date. It is the same day Marty arrives in 1955. Two lines that are thirty years apart in every other respect touch on one square of the sheet, and one of the two men has no idea yet why that matters. Doc, played by Christopher Lloyd, is one of only two characters whose line appears in both decades.
George McFly comes back a different shape, and the map has to show it
George, played by Crispin Glover, is the only character whose line I redraw on the return leg. He goes into the Enchantment Under the Sea dance as the man who cannot look Lorraine in the eye, and he comes out of it having flattened Biff Tannen with one punch.
On a transit map you cannot change a line's colour halfway along without breaking the convention that holds the whole thing together. So the change is carried by the stations instead. The 1985 stations on George's line before the dance and the 1985 stations after it are not the same stations, and that is the quietest detail on the print for anyone who knows the film properly.
Lorraine, played by Lea Thompson, crosses Marty's line in 1955 in a way it never crosses in 1985, which is the part of the film that would collapse the timeline if it went one step further. She knows him as Calvin Klein. Biff, played by Thomas F. Wilson, runs alongside George in both decades in a relationship that has completely inverted by the last scene.
Twin Pines becomes Lone Pine, and that is a place name, not just a plot point
Marty lands the DeLorean in Old Man Peabody's field and flattens one of his pine trees. At the end of the film, the mall in the closing sequence is Lone Pine Mall.
It is the smallest possible piece of evidence that a timeline has been altered, and it happens to be a place name. A transit diagram is a list of place names, so when a place name changes, the format notices before the reader does. That is the single best argument for drawing this particular film this particular way.
The DeLorean is treated as a character because structurally it is one
Conceived by Dr Emmett Brown, the car is what sends Marty into the past and what brings him home, so on the sheet it behaves like a line rather than a prop. It appears at the stations where the plot turns, and the two timelines run either side of it.
The gull-wing doors and the stainless steel body belong to the decade Marty comes from. The flux capacitor and the engine are Doc's. Between them they are the only mechanism in the film that moves a character from one half of the map to the other.
Cause and effect, and the photograph that fades first
The film's engine is consequence. Every change Marty makes in 1955 alters what waits for him in 1985, and the story makes that literal with the photograph in his pocket.
This is the part that rewards being drawn. The map shows which scenes are causes and which are effects, and how far apart in running time they sit. The photograph starts fading long before the dance, and the dance resolves long before Marty returns, so the chain of consequence stretches across most of the film rather than gathering at the end.
The climax is really two climaxes. The clock tower run and the dance play out at the same time, in two separate clusters of lines that converge on one station. That is the densest point on the whole sheet, and it is why the ending lands as hard as it does.
Why the 1985 film still holds up
Its version of time travel has become a shorthand that later films borrow from freely, and Marty, Doc and the DeLorean have all outlived the film as images in their own right.
From my side of it, what stands out after plotting the thing scene by scene is how little is wasted. Almost every scene in the first act is set-up that pays off in the third. Films remembered mainly as fun are not usually built that tightly.
Back to the Future Movie Plot Lines Tube Map Art Print
The 1985 film as a tube map, with both Hill Valley timelines, five character lines and the key scenes as stations. Giclée on 230gsm archival acid-free matte fine art paper, hand-designed without AI. A3, A2 or A1, from £35. A3 is unframed only, while A2 and A1 come unframed or in a black wood frame.
Sizes and prices
The print comes in A3 (420 x 297 mm), A2 (594 x 420 mm, 23 x 16 in) and A1 (841 x 594 mm, 33 x 23 in). All three are landscape. A3 is unframed only, from £35. A2 and A1 are available unframed or ready to hang in a black wood frame. I also print three separate inch formats for buyers in the USA, Canada and Australia, at 16 x 12 in, 24 x 18 in and 36 x 24 in, which are their own formats rather than conversions of the A sizes.
If the person reading it is the sort who has opinions about the Twin Pines detail, go A1. The smaller station names either side of the dance are far easier to pick out at that size.
Questions about the Back to the Future plot map
Does the map cover the trilogy or just the first film?
Just the 1985 film. Parts II and III are not on it. It plots the two Hill Valley timelines, 1985 and 1955, from the opening at Doc's workshop through to the DeLorean's return.
Which characters run as lines?
Marty McFly, Doc Brown, George McFly, Lorraine Baines and Biff Tannen, with the actors named alongside the characters on the sheet.
Is the 10:04pm lightning strike actually marked on it?
Yes. The clock tower is the one station carrying a time as well as a date, because everything on the 1955 side is scheduled backwards from it.
Does the map show dialogue?
No. Each character is a line and each scene is a station, so it shows who is present and in what order events happen. No quotes, no script.
Does it spoil the plot?
It plots the whole film, so yes. It is made for people who have already seen it, and the more they know, the more it gives back.
Related film plot maps
If a 1980s film they can trace rather than only watch is the point, the Blade Runner Plot Lines Map is the closest relative on the wall, quieter and more atmospheric, and it hangs well beside this one. The Jaws Plot Lines Map is the other natural companion, a single tight three act story where the tension sits in how few lines there are. The rest of the range is in the film plot map collection. For a map that covers a whole series rather than a single film, I have written up every James Bond film in order.
Two timelines on one sheet
Researched from the film scene by scene, designed by me, printed as an archival Giclée in A3, A2 or A1 from £35.
Buy the Back to the Future plot map art print
Buying it as a gift and not sure of the size? Send an art print gift card instead.