matties dad is in the principle designer of a project called CellWorld. everything is going well on the construction of the project until one day a construction worker, while oggling some girls in tube tops, overheats a weld at a critical turn in the DNA roller coaster. this weld will later fail, causing the roller coaster car containing matties family to leave the tracks at the apex of a turn. matties mother is sick from a mysterious illness. mattie takes it upon herself to find out what is wrong with her mother, why the roller coaster failed and who was responsible. in doing so she solves two problems at once.

The girl keeps searching for the answer.
One person says its like traffic, somone else says it s like a rollar cosater. we show a near miss in traffic to foreshadow the incident with the RC. what the girl visualizes over and over agian, like the photoshop zoom is explanation after explaination that tells a different part of the story.

her mother and brother are killed on the RC, but she survives, she was not on it because she was sick of it. Her mother loved ife and just got out of the hospital and wanted to ride it one more time, it was one of those really cool ones.

After she recoveres from her mother's funeral she ggoes back to look at the RC. She notices the workman welding and cat-calling to women minding their own business below. When she comes into the park she sees a worker making a routine repair to a ride. Then she stares down at the broken section of RC that has fallen to the ground and noitices a problem with the weld. She calls over the head of the park and starts to ask on questions. at first he evades her questions, like he is covering something up. She keeps nailing him down to get him to answer her questions ( maybe pulls a gun) and says "Tell me how they build these tracks" He says prefab sections are welded into place and at that moment she has a transhallucenatory attack and in the attack she sees DNA polymerase on the leading and trailing strands making the yakazuki fragments. The she sees the workmen welding the RC track when it was first contructed, then she goes back to the DNA strand. At that moment a glint of light from the sun hits the DNA and makes a thyimine dimer at that same moment the worker who was welding the RC looks away because he sees a pretty girl in a halter top below. While he is looking away the torch stays on the work too long but he doesn't see the damage that happens. At that moment we see the DNA plolymerase jam up on the tracks as it hits the TD at that monment, she is relives her mother's last ride as the car is coming to the weak point in the tracks. The DNA Poly stalls and can't go anywhere...the RC wheel hits the bad section of track the RC breaks free, we see Mother and bother in terror careening from 200 feet in the air toward the asphalt at that smae time we see the DNA poly. ( zoom out) to see the translocation ( skylike) and now we see the beinging of the multiplication of the hostile cells
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this comes to the girl after she has tried to understand cells as a railroad car model and she has tried to view them as little planets.

she has tried to view cancer like the big bang, She has viewed cancer as the landing of alien spaceships in a cell and she has viewed a cell as a city from the air.