This question contains many spoilers for Tenet.

I'm trying to work out exactly what happens in the car chase sequence. I think I understand where most of the characters go, but there's a couple of objects where I don't understand what happens to them.

The main one is the silver box that later turns out to be part of the algorithm. It seems that this is what happens:

enter image description here

Initially the protagonist has the algorithm with him in his car. Then at some point the silver car un-flips and joins the chase.

In a third car, Sator appears to be counting down on his fingers (though from Sator's point of view he's counting up), and the protagonist throws him the orange case that originally contained the algorithm. However, we later find out that he threw the empty orange case to Sator while almost simultaneously throwing the algorithm into the silver car.

Later, the protagonist goes through the turnstile, exits the building inverted, and finds the silver car.* For some reason, he doesn't seem to realise that at this point the algorithm is (as far as I know) somewhere in this car.† ‡ He then drives off and enters the car chase. The algorithm then jumps up from somewhere and flies into the BMW, which is how we know he threw it in there in forward time.

He then crashes the car, and Sator catches up with him and sets it on fire. But as the diagram above shows, the algorithm isn't in the car at this point - in the inverted time line, it's already jumped into the BMW.

After that the protagonist loses consciousness, and when he wakes up he says that Sator has the algorithm. Later we find out that this is true, since all the algorithm's components have been assembled at the final battle.

So in forward time, the algorithm seems to end up sitting in the silver car, parked outside the turnstile facility, which has been taken over by Ives' team. The question is how Sator's people get hold of it after that. It happens off screen, but is it explained or hinted at?

Sator himself can't have picked it up, because he inverts before the protagonist gets into the car. Unless he uninverted later, before inverting again and going back to Vietnam.

The other thing I don't understand is what happens to the orange case that the algorithm was in originally. The (non-inverted) protagonist throws it to Sator. But this Sator is inverted, which means that from his point of view it jumps out of his hands and into the protagonist's. (After that he starts counting upwards on his fingers for some reason.) But how did Sator get hold of it before that, from his perspective? At some point it's by the side of the road, but if it was thrown from the inverted car he wouldn't have had it at that point to pass it to the protagonist. I probably missed something here - which car was it thrown out of, and when?

*In my headcanon this is an inverted getaway car that Sator's gang left outside the inverted half of their hideout. This explains why the car itself seems to be inverted, and also explains why there's a fancy fast car so conveniently placed at that location. Nope, that doesn't make sense - they would have to invert the car in the future in order for it to be there at that time, but Ives' team owns that facility now. Sator's team could re-capture it in the future and invert the car then, or invert it somewhere else, but then why would they go out of their way to put their inverted car there, knowing that it would be used by the protagonist in the car chase? Unless that's how they got hold of the algorithm, in the future, when they inverted it. But it seems more likely that it's just a normal car and it's just cinematic license that it behaves inverted when the protagonist drives it. (This point continued to bug me, so I've asked another question here.)

If he did realise that and tried to take it out of the car it probably wouldn't work, because it would make it impossible for him to have thrown it there in the first place. But I guess there's nothing to stop him telling one of his friends to go back through the turnstile and pick it up in forward time. He could then go and enter the car chase, to make sure the algorithm would be there in the first place. I suspect the idea is that he hasn't quite understood how time inversion works, so he thinks the algorithm will come into the Saab when his other self throws it.

Having watched it again on the small screen, he does check behind the driver seat when he first gets into the car, so maybe he knows the algorithm should be there after all, and is looking for it. He doesn't seem to look very hard, though, and fairly quickly gives up and drives off.

  • Have you checked the other questions and answers about Tenet? – BCdotWEB Oct 26 '20 at 17:19
  • @BCdotWEB yes, I've read all of them in detail. – Nathaniel Oct 27 '20 at 1:43

If you take Sator's perspective, it is easier that way.

  1. Sator take his wife to his warehouse and beats on her. (shown to audience)
  2. Sator listens to his radio about how everything goes during the car chase scene, there are two Sator throughout the car chase scene, one inverted and one not; we are taking the non-inverted Sator's perspective. (happens off screen at the same time of the car chase, not shown to audience)
  3. Sator enters the red room, beats on the captured protagonist and asks him where is the algorithm part. The protagonist lies to him "it is in the BMW" (shown to audience)
  4. Sator sees through the window that the inverted Sator starts walking backwards to the turnstile; he realises it is time to invert himself. At this moment, Sator is about to become inverted and about to look for the BMW for the part. More soldiers arrive and chase Sator off into the turnstile. (shown to audience)
  5. Sator becomes inverted and starts to interrogate the non-inverted protagonist across the window; but everything inverted Sator speaks is inverted now, therefore there is radio to translate inverted Sator's questions (shown to audience)
  6. The inverted Sator threatens to the already injured Kate first then shoots her, the already injured Kate becomes unshoot (her wounds heals up and the bullet returns to Sator's pistol). (shown to audience)
  7. Inverted Sator takes non-inverted Kate with him, out of the warehouse. (shown to audience)
  8. Inverted Sator goes to the scene where shooting is happening, Sator's men are shooting against the cavalry Neil has called over. But inverted Sator does not find the part from the BMW. (how inverted Sator gets to the scene is not shown to audience, we are only shown inverted Sator is looking for the BMW car during the shooting)
  9. Inverted Sator and his inverted driver get into a car, chases up the AUDI with only Kate trapped in it and they jump into the AUDI. (shown to audience but it is in inverted order, e.g. what we see is Sator and his driver escape from the AUDI into a car, leaving Kate to become trapped)
  10. Inverted Sator throws the orange box to the protagonist (shown to audience but this throwing scene looks like both side are throwing/catching the orange box)
  11. Inverted Sator sees the car in the middle is driven by inverted protagonist and also sees the protagonist throws the part into the car in the middle (shown to us)
  12. Inverted Sator rams inverted protagonist's car. (shown to audience)
  13. Inverted Sator points his gun to Kate and demands the protagonist for the orange box. (shown to audience but it is inverted)
  14. Inverted Sator drives back to the inverted protagonist and sets his car on fire. (only the fire-setting part is shown to audience)
  15. Inverted Sator now knows exactly where the part is. He radios his normal henchmen to take it out of the car which parks outside the warehouse. (not shown to audience)
  • I guess it makes sense that Sator just tells his henchmen to get it later. (It's a bit annoying that the good guys don't do the same thing, since they're occupying the warehouse when the car is there and could easily just go outside and get the box before Sator's people can reach it, but I guess they just didn't think of it.) – Nathaniel Oct 27 '20 at 10:10
  • What about the orange case - does Sator already have it when he gets into the speeding Audi? How does he get it? – Nathaniel Oct 27 '20 at 10:11
  • 1
    Sator throws it away after he discovers it is empty. The inverted protagonist sees the box being un-thrown into a moving AUDI car. The inverted protagonist also puts a smartphone inside so that he could spy on the people in that AUDI car. – Yu Zhang Oct 27 '20 at 10:43
  • Is Sator inverted at the time he throws it away? If so that means he's catching it, not throwing it. He must catch it first, then realise it's empty, and then throw it to the protagonist, after that. – Nathaniel Oct 27 '20 at 11:27
  • Yeah, inverted Sator unthrows this empty orange box, checks it out, then uncatches it to the protagonist. – Yu Zhang Oct 27 '20 at 21:25

The Protagonist's lie successfully foiled Sator's pincer movement operation. Sator did not get the last section of the algorithm from the car chase event or its immediate aftermath (= the Protagonist left the section in the Saab). Somebody else took it from the Saab. Sator got it from... well... ignorance is our ammunition. ;)

This could be confirmed by looking at two scene: 1) Non-inverted Sator's retreat after Ive's team seizure of the turnstile; 2) Inverted Sator's lines eavesdropped by the Protagonist via bluetooth earbuds.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .