The movie "Piranha" is about prehistoric piranhas that still exist and are awakened in a town lake after an earthquake. The piranhas start attacking and killing people, and a group of friends, including Jake, Kelly, and Derrick, try to survive and escape. The piranhas are revealed to be a species thought to be extinct for over 2 million years, and they are found to have survived by eating each other. The group tries to stop the piranhas, but they are highly aggressive and nearly unstoppable. In the end, Jake and Julie manage to escape by blowing up the piranhas using a flare and a gas tank, but not before discovering that the piranhas they were hunting were just babies, and the parents are still out there.
Here are the key facts extracted from the text:
1. The film begins with a man fishing in a town lake.
2. The lake floor starts to dance, causing a crack to open at the bottom.
3. The crack wakes up piranhas that were previously dormant.
4. The piranhas create a whirlpool that pulls the man into the water.
5. The man falls into the water and is attacked by the piranhas.
6. Julie Payette and Jake, the sheriff's son, are introduced as protagonists.
7. A group of divers and biologists are sent to investigate the lake.
8. The group discovers a man's body that has been disintegrated by some creature.
9. The piranhas are found to be responsible for the man's death.
10. The piranhas are revealed to be an ancient species that had been extinct for over 2 million years.
11. The piranhas have survived by eating each other and mating in groups.
12. The first drop of blood attracts the piranhas, making them aggressive.
13. The characters try to stop the piranhas using bullets.
14. The piranhas enter the boat, and the characters try to escape.
15. Jake's brother is killed by the piranhas.
16. Jake and Julie try to save the others from the piranhas.
17. Jake uses a flare to distract the piranhas and rescue Julie.
18. The characters escape the lake, but not before Jake and Julie share a kiss.
19. The film ends with the characters discovering that the piranhas they killed were just babies, and the parents are still out there.