Barton Homestead, outside
The scene first panels up to an arrow being nocked into a bow. The archer behind firmly grips it tight as it was aiming towards the target. The camera reveals Clint Barton holding up a few arrows while mentoring his daughter, Lila Barton, on shooting one.
Clint: Okay, hold on. Don't shoot. You see where you're going?
Lila: Mhm.
Clint: Okay, now let's worry about how you get there. [Clint corrects his daughter's foot to the proper position, and adjusts her shooting stance.]
Clint: Here. Can you see?
Lila: Yeah.
Clint: You sure?
Lila: Mhm. [Clint pushes Lila's hair in front of her face while covering her left eye.]
Clint: How about now?
Both Lila and Clint giggle, as the camera panels into a long shot showing a target nailed on a tree, and the rest of Barton family having a picnic in the field.
Clint: Alright. Ready your fingers.
Cooper: Nice.
Laura: Nice throw, kiddo.
Cooper: You go.
Laura: Hey, you guys want mayo or mustard, or both? [Camera switches to Lila who then proceeds to look at Clint.]
Lila: Who wants mayo on a hotdog?
Clint: Probably your brothers.
Clint looks at his wife, Laura.
Clint: Uh, two mustard, please! Thanks, mama.
Laura: Got it! Nate, mayo or mustard?
Nathaniel: How about ketchup?
Laura: Or ketchup. I got ketchup too.
Clint: Mind your elbow. (Lila releases the arrow and it hits the target directly in the bullseye.) Hahaha! Good job, Hawkeye. Go get your arrow.
Laura: Hey guys! Enough practice, soup's on!
Clint: Alright, we're coming; we're hungry. (He looks behind him, but there's no one there, but dust being blown away by the wind.) Lila, let's go. (Clint starts to look around) Lila? (Clint starts to move and look around, and pick up the bow she had.) Honey? Hey, babe! Babe? Babe? Boys? Boys? Laura?
As he continues to look around that his wife and children are gone. Unaware of Thanos activating the completed Infinity Gauntlet.
Elsewhere at Royal Woods Mall, inside
Lori, Leni, Bobby, and Becky are in the mall shopping for clothes for sale.
Leni: O.M. Gosh, you guys! Check out this cute sundress! It's definitely like half off.
Becky: Well what do you know! It's springtime and it's time to enjoy the beautiful weather.
Lori: I literally love the spring flowers. They make a great smell.
Bobby: Can't wait to pick some out for you, babe!
Lori: (giggles) Aww, that's so sweet, Boo-Boo Bear!
Becky: (notices something) Uh, guys! I think you should look what's going on.
Out in the mall, there are some shoppers who are vanishing into thin air, and some who survived.
Leni: It looks like everybody is turning into dust.
Lori: Well that doesn't look like you see that everyday!
Bobby: Uh, babe?
Lori looks at Bobby, and looks on in shock and horror as Bobby suddenly disintegrated into dust in front of her eyes.
Lori: (terrified) NO! BOO-BOO BEAR!
Becky: What the heck is happening?
As Leni starts to turn to dust.
Leni: Hey, Lori, Becky?
She disappears before their very eyes.
Lori: Leni, not you too!
Becky: We better get to your house and explain everything to your family!
Lori: Let's go!
As they leave the mall by going through the shoppers who are crying over the deaths of their loved ones.
Bikini Bottom, the Chum Bucket
Plankton and Karen are researching about what's happening to the world.
Karen: My sensors are indicating there are numerous people and animals are disappearing all over the world.
Plankton: That's impossible! How could there be such infamous power?
As Karen starts scanning about what is happening to the world.
Karen: It seems that there was a major disturbance going on in Wakanda where the Avengers fought the aliens before facing their evil leader, the Mad Titan, Thanos from obtaining the Mind Stone, which was in Vision's forehead.
Plankton: That seems anticlimactic. But it could be nearly accessible. It doesn't matter now. The golden glove was made from the same stuff Thor's hammer was made.
Karen: I think it's called Uru.
Plankton: I see now. By the way, let's see what Krabs is up to this time.
Meanwhile at Shady Shoals
Mermaid Man and Barnacle Boy are looking at the residents of the retirement home turning to dust in front their own eyes.
Barnacle Boy: Oh, no! There's something evil going on here!
Mermaid Man: Barnacle Boy, we've got to find the Avengers before there's more devastation.
Barnacle Boy: (starts to fade away) Uh, Mermaid Man? I'm starting to disappear! Go on without me!
Mermaid Man: Don't worry, Barnacle Boy! I will find them! I promise!
As soon as Barnacle Boy vanishes, Mermaid Man manages to meet up with SpongeBob at the Krusty Krab.
Bikini Bottom High School
Pearl and her friends are looking on in terror as half the students and staff began disappearing.
Judy: What's going on here?
Pearl: I don't know!
Debbie: (begins to fade away) Uh, ladies?
As her friends look at Debbie, in both shock and horror as she disintegrates.
Tina: (scared) Oh, no, Debbie!
Sheila is beginning to fade.
Sheila: Pearl, Judy! You girls better find the Avengers! They are the only hope of the world.
She finally disappears.
Pearl: Come on, Judy! We've gotta go to the Krusty Krab to tell my dad about the Avengers.
Judy: (nods) OK, let's go!
They leave the school.
Mrs. Puff's Boating School
A terrified Mrs. Puff watching half her students vanish into thin air.
Mrs: Oh, no! What is happening to my students?
Student #1: I have some terrifying new that the Avengers are in Wakanda fighting Thanos.
Student #2: Yeah, but he's completed the Infinity Gauntlet to wipe out half the universe.
Student #3: It looks like we're the only ones left.
Mrs Puff: Not all us, but half the school is!
The surviving students are shocked about this event.
Meanwhile in Jambastion
The Mage Sisters are witnessing this horrifying event as the fortress' inhabitants are crumbling into dusted and some who survived.
Zan Partizanne: What is happening to our minions?
Francisca: It must be the work of Thanos.
Flamberge is starting to disintegrate.
Flamberge: Uh, ladies! I think I am fading away!
She vanishes, and the two girls are terrified until Zan Partizanne starts to disappear.
Zan Partizanne: Franny, you must find Kirby and inform him about the situation.
Francisca: Oh, no! Zan, not you too!
Zan Partizanne: And just to make sure, help Kirby find Carol Danvers and use the stones bring everyone back safe and sound.
She fades away. And Francisca salutes in determination.
Francisca: Okay, I will help them.
She sets off to Dream Land to find Kirby about the Thanos situation.
Elsewhere in Dr. Eggman's Underground Base
Eggman and his robots are witnessing this catastrophic event. However, some of the robots are disappearing.
Dr. Eggman: What is happening to our robots?
Orbot: It seems there's an energy signature that's coming from Wakanda.
Cubot: Oh, I would love to visit Wakanda.
Somehow, Cubot is starting to fade.
Cubot: Um, guys! I think something's happening to me!
He disintegrates as Orbot and Dr. Eggman look on in shock.
Orbot: Oh, no, Cubot ! Not you too!
Dr. Eggman: This can't be happening!
Orbot: It is revealed that the Mad Titan known as Thanos has collected the Infinity Stones to complete the Infinity Gauntlet.
Dr. Eggman: So that madman has collected them all just like Chaos Emeralds from their holders.
Metal Sonic arrives about the situation going on in the universe.
Dr. Eggman & Orbot: Metal Sonic!
Metal Sonic: Multiple bogies are disappearing which it came from Wakanda where Thanos snapped his fingers.
Dr. Eggman: Okay, now let's get going! We've gotta get to Wakanda and collect some Vibranium.
They head for the Egg Carrier.
Foot Headquarters
Shredder, Karai, Bebop, and Rocksteady are watching half the Foot Clan vanish.
Karai: Who could have done such a thing?
Shredder: But half of our army remains.
Baxter: Uh, you guys?
The Shredder and Karai look at Baxter, who fading into thin.
Bebop & Rocksteady: (shocked) Oh, no!
Rocksteady is starting to vanish.
Rocksteady: Bebop, what's happening to me?
He fades away from Bebop.
Bebop: No not you too, buddy!
He was in a state of shock after seeing his partner vanish.
Karai: Well at least we are still alive for some reason.
Shredder: Now we must take down those turtles, in case they get to the Avengers before we do.
Bebop: Who are they anyway?
Shredder: The Earth's Mightiest Heroes!
Karai: These guys have fought the Chitauri here, the Ultron attack in Sokovia until it blew up, and they were divided caused by the Sokovia Accords.
Bebop: Until Iron Man a.k.a. Tony Stark, who just got into a spaceship along with Spider-Man to rescue Doctor Stephen Strange, who had the Time Stone.
Shredder: Indeed! Now we must find the Avengers and take them by surprise before the turtles could get to them first.
Karai, Bebop, and the Foot Clan cheer in honor of their fallen comrades.
Elsewhere in another part of the galaxy
Somewhere in outer space, the Skrulls are now living in an unknown planet since 1995 after the Kree-Skrull War, with the help of a woman with golden hair and a red and blue suit goes by the name Captain Marvel a.k.a. Carol Danvers.
Carol: (after witnessing the event where half the universe died) Well there's another crisis going on in the universe. And that's what I'm going to do about it.
Talos: I was wondering if Fury had given you that pager lately.
She takes it out when it started to beep when Fury pressed the button before he disappeared in Atlanta.
Carol: Looks like he did it this time. Don't worry, I'll come back! I promise!
Soren: Be sure to tell Kirby we said hello!
Talos & Soren's Daughter: I really want to see him again.
Carol: I will!
She flies away to Earth to find Nick Fury.
Great Lakes City
In the Casagrande Apartment, the Casagrande and Santiago family are horrified of this event.
Ronnie Anne: Bobby has vanished in front of Lori and she called me about this predicament.
Rosa: Uh, guys!
She starts to vanish and the family is shocked.
Maria & Carlos: MOM, NO!
Hector: Oh no, Rosa!
Maria, Carl, Frida, and Lalo started to disappear as well.
Carlos: This is madness!
CJ: Major pandemonium going all over the universe.
Carlota: What's happening to everybody?
CJ: Well the Avengers are struggling to figure out what's causing this mayhem.
The family started to look at CJ, who said about the Avengers.
Sid knocks on the door and Ronnie Anne lets her in.
Ronnie Anne: Sid, what's happening?
Sid: I just saw the whole thing. But my family's all right.
Hector: Ah, Sid it's good that you're alive as well!
Sid: I know!
CJ: Well all of us are knowing that Avengers are trying to figure out how to stop this madness.
Sid: I've heard a lot about them! Tony Stark is the legendary Iron Man.
Ronnie Anne: Steve Rogers is the heroic Captain America, who was frozen for 70 years.
Hector: Bruce Banner became the Hulk due to gamma radiation.
Carlota: Thor has his awesome hammer known as Mjolnir.
As everyone discussed about the Earth's Mightiest Heroes, they began to find out that their heroes are in Wakanda.
Ronnie Anne: So they're in Wakanda to warn T'Challa about the alien invasion.
Everybody nods that they are in Wakanda.
Meanwhile at the Haltmann Works Company's Head Office
Susie is witnessing this horrific event from her window, watching half the Robobot army fade away into dust.
Susie: This can't be happening! Robots weren't meant to turn to dust! Ugh! I've gotta find Kirby and help him solve this major crisis.
She takes out her remote and pushes a button to activate her business suit before flying away to Planet Popstar.
New York City
In the New York Sanctum, Wong was shocked of the event about half of the Masters of the Mystic Arts vanishing into thin air.
Wong: Oh, no! This cannot be happening!
This takes place following the conclusion of the battles of both Wakanda and Titan where Thanos gathered both the Time and Mind Stones in separate locations. Thus he completed the Infinity Gauntlet by snapping his fingers, erasing half of all life in the universe called the Decimation.