Things gradually became clear, and as Cooper slowly calmed down from the infinite loneliness and disintegration, all the ins and outs became clear.

It is the future of human beings, in the distant future, "they" know that the earth has faced a devastating blow, so they placed a wormhole next to Saturn, so they found a black hole next to the planet, so they established this five-dimensional space in the black hole, guided Cooper here, and then completed the plan to save mankind, through the time and gravity of the black hole to change the time that "can never be reversed" - If time can't be turned back, then they travel to the past in the future, and then change the future in the same way that the past is changed.

The "they" in Professor Brand's mouth are actually themselves.

It was he who sent the signal through gravity here, hinting at the coordinates of NASA, but the real target was not for Cooper but for Murphy, because he could send back the coordinates of the black hole's singularity through gravity here, and then Murphy could solve the equation left by Professor Brand, so that the first plan could be implemented again, and the human beings on Earth would have the possibility of life again.

It was his Murphy.

Murphy finally discovered the secret of the watch, held it high and rushed out of his room, shouting at the angry Tom, "He's back, it's always been him, I didn't know before, but it's him! Then, Murphy hugged Tom tightly.

Graham's tears have completely burst the embankment, it is love that makes Brand fly towards Edmonds's planet, it is love that allows Cooper and Murphy to overcome time and space to connect with each other again, and it is love that makes the human beings of the earth have hope again in the end of the world.

What a cliché and rigid story core, even sensational chicken soup for the soul, but at this moment, Graham stared at the picture and Murphy gradually revealed a resolute look - so similar to Cooper, he couldn't cry, the warmth and tenacity of the power made him completely disarmed.

Murphy reads the signal from her father, and she finds the singularity of the black hole.

Then, the five-dimensional space in the black hole began to crumble.

Between the distortions of time and space, Cooper saw Brand again-

When Interstellar Travel was just beginning, when Brand first came into contact with the huge impact caused by black holes, Brand once tried to touch those distorted images in the gap between space-time distortion, and in fact, those images were the current Cooper, they broke the barrier between the past and the present, and completed the "alien ET"-style communication for the first time.

The black hole vanished, Cooper lost consciousness, and floated near a wormhole next to Saturn, before humans appeared at the far end to come to the rescue.

When he opened his eyes again, Cooper was already in a hospital that was all white, which gave Cooper an incredible illusion that the only thought in his mind was "dreams", that he was now dead, and that all the sights he saw at this time were dreams of his own imagination, which was the only explanation.

But the doctor at the end of the bed was trying to explain it, "Slow down, Mr. Cooper. Remember, you're not a lad anymore, in fact, you're one hundred and twenty-four by now. ”

The corners of Cooper's mouth rose slightly, a little self-deprecating, and a little teasing, as if he thought the other party's joke was really good. He slowly stood up, came to the window, opened the curtains, and prepared to see for himself what it was all about.

"Take your time, sir. You're lucky that when the Ranger arrived, you had only a few minutes left on your oxygen supply. The doctor's voice was still ringing in his ears.

Cooper had already seen the sight out the window, the teenagers playing baseball, and then the whole city rolled up like a roll towards the sky, and the houses and streets could be seen overhead, and Cooper was so confused by such a strange sight that he finally said the first sentence, "Uh...... Ahem...... "Because he hadn't spoken for too long, his voice was a little hoarse," I ...... Where am I?"

"Cooper Space Station. "It is currently orbiting Saturn." "This space station is not named after Cooper, but after Murphy.

That's when Cooper remembered, "Is she still alive?"

"She will be here in two weeks. The doctor nodded in the affirmative, "She's too old to travel between space stations, but she's found you as soon as she hears about it...... She's Murphy Cooper!"

From the doctor's words, Cooper could taste the respect and admiration, which made the smile on the corner of Cooper's mouth can't help but rise, and the depths of his eyes flashed with pride, and he bowed his head slightly, "I think so." ”

Murphy rebuilt the cornfield and his childhood home on Cooper's space station, with all the furniture and surroundings exactly as Cooper remembers, as if he never left, the only difference being that the house is now a museum for people to visit.

Two weeks later, Cooper saw Murphy again, only to learn that he was about to face a large family, and when he opened the door of the ward, he saw the whole room full of strangers, from old people to children, bustling with the whole room, all around the bed, waiting for an old man with gray hair.

Cooper's footsteps paused for a moment, staring at the old man on the hospital bed, her eyes flickering slightly, but she didn't know how to react, and then she couldn't stop crying, she looked at Cooper with longing eyes, and trembled and stretched out her left hand with the watch, and cautiously leaned towards Cooper.

On the hospital bed, it was a drooping old man, whose vitality seemed to be slowly draining, and his thinning hair and wrinkled face clearly recorded the traces of time.

Next to the bedside, it was a vigorous young man, Cooper who had shaved off all his beard, and even looked faintly immature.

But the old man is the daughter, and the young man is the father, and this dislocation creates a wonderful and moving atmosphere between the two people.

Cooper took Murphy's left hand and rubbed it lightly on his cheek, the faint light in his eyes turned into tears, and he gently raised the corners of his mouth and quipped, "You tell them I like farming?"

This immediately made Murphy laugh.

"It's me, Murphy, and I'm your ghost. Cooper whispered.

Murphy's eyes showed a look of satisfaction, "I know. They didn't believe me, they thought I had done it all myself, but I knew whose credit it was. She raised her left hand and showed her watch to her father, raising her chin as if her little daughter wanted to be praised.

Cooper raised his right hand and tried to caress Murphy's head, but his right hand paused for a moment, revealing a hint of hesitation, and finally fell down cautiously.

Murphy gave a comfortable expression, "None of them believe me, but I know you'll be back." ”

"How do you know?" Cooper asked.

Murphy smiled brightly, "Because my father promised me." ”

Cooper's eyes reddened again, "I'm here now." ”

But Murphy shook his head, "No, no father should watch his children leave. My kids are here now, you should leave. ”

"Where?" Cooper's voice trembled slightly, the person in front of him was obviously his closest person, but the time gap had cruelly separated them, even if he returned to his homeland, but those people in his homeland were gone, and he was still alone.

That loneliness flickered in Cooper's eyes.

"Brand. Murphy gave a surprise answer, "She's still there, setting up camp, alone, in a strange galaxy, maybe she's built a new home now, bathed in new sunshine." ”

Brand arrives on Edmonds' planet, but Edmonds is gone. Although humans have built different space stations around Saturn, Brand did not choose to come back, but stayed on Edmonds' planet and continued to build a base suitable for human survival.

Alone.

Like Cooper, both of them survived, but both of them were alone, the yin and yang separated Brand left Brand alone in the world, and time and space forcibly separated Cooper from the world of Tom and Murphy, so that the two of them who had experienced everything became each other's last dependence.

Only they can understand each other, and everything else has nothing to do with them, as if it were another world.

That loneliness, that loneliness, that kind of dazedness, made their souls become at a loss, even though Cooper had returned to Murphy, but around Murphy's hospital bed were a group of strangers, strangers who were related by blood but had no family bonds, and Cooper was the same as Brand.

So, Cooper took the repaired TARS, stole a flying machine in the middle of the night, and set out on a journey again, going to the planet of Edmonds to find Brand. Two lonely souls, on a brand new planet, build their own home.

Cooper sat in the driver's seat, his calm eyes did not fluctuate or shine, like a deep night, it seemed that there was not even a little starlight, he started the aircraft step by step, and flew towards the unknown in the distance, in a trance, he seemed to return to the distant past again:

At that time, his flying machine lost control and crashed, and then he became a farmer, forced to start a new life in the middle of the apocalypse, and now he entered a new cycle again.

But Cooper didn't have any fear or worry, his eyes were as calm as water, and he could faintly catch a trace of lonely confusion struggling, and then it was replaced by a glimmer of hope, faint but bright, and he sprinted forward again with indomitable and unwavering determination.

Black screen.

Finish.

The movie is over.