Nolan's film Tenet once again achieved a blockbuster, with thunderous applause. But after watching this movie, many people said they didn't understand it, which is normal, because the relationship between time and space of this movie is 123, 32 1. The whole movie uses many theories of time and space, as well as the classic grandfather paradox. Here's the story. The protagonist was originally a CIA official who was ordered to go to the Ukrainian Opera House to rescue an important American who was held hostage by terrorists. However, he was hit by a bullet from the opposite direction, caught and committed suicide by taking poison. It turned out that this was just a test. He passed the test and became a member of the mysterious organization. Later, he and his partner Neil went to investigate the source of the bullet and found that the bullet was a future item, so they found an Indian arms dealer and learned that the bullet was actually an arms giant from Russia. In order to get close to Dazhuang, the protagonist and partner decided to start with their wife Xiaomei (omitted here). Xiaomei said that he and Dazhuang had actually fallen out, and Dazhuang threatened her with her handle after her holiday in Vietnam. So the protagonist and Xiaomei reached an agreement, he helped Xiaomei remove the handle, and Xiaomei helped them introduce Dazhuang. After that, the protagonist and Neil came to Xiaomei's holiday painting warehouse. Here, they found a portal that went back in time, and two people ran out of two portals respectively. One is that all movements are positive E and very fast, and the other is that all movements are negative. The protagonist tried to kill the villain, but Neil stopped him. Later, they successfully met Russian Dazhuang. Originally, Da Zhuang thought that the protagonist was with his wife, and he was not pleasing to the eye. A series of protagonists in the middle were beaten by Da Zhuang and so on. But then I made a deal with the protagonist, that is, the protagonist helped him get the black box. That black box is actually the last part of the weapon to destroy the world. However, after the protagonist got the box, Dazhuang suddenly appeared, threatening them to hand over the black box with Xiaomei. Moreover, at this time, all the actions of Da Zhuang are reversed. He is wearing an oxygen mask. The protagonist was almost killed by Da Zhuang, but Neil saved him, and the protagonist understood how it all happened. Before returning to the warehouse and entering the time machine, this group of people got very important information from Indian arms dealers and learned that Dazhuang intended to destroy the world. This plan was made by future people in order to kill human beings in 2 1 century. As long as we collect annihilation weapons, we can destroy all mankind. So the protagonist and his friends are going to stop Da Zhuang. They went back to the past, Xiaomei got off with Dazhuang in her arms, and the protagonist and Neil went to solve the extinct weapons. In this process, the protagonist and others have experienced some struggles. Just when the protagonist was about to be killed by the little BOSS, a body suddenly revived and then helped the protagonist reverse the bullet. Finally, the protagonist and his party successfully stopped Da Zhuang and future people's plans to destroy the world. But just when everyone thought it was all over, Neil suddenly said that he would go back in time. The protagonist realizes that Neil was the one who took a bullet for himself before, and now he is going to die. Moreover, Neil also told the protagonist that he is the person recruited by the future protagonist, and the protagonist will become the founder of this action in the future. At this point, the whole story is presented.