New York City, 2012
Steve, who has just defeated his 2012 self, jumping down from a building with the scepter, regrouping with Knuckles, Scott and Tony, who are looking down after losing the Tesseract.
Tony: Cap. Sorry, buddy. We got a problem.
Scott: Yeah, we do.
Knuckles: It's because Loki escaped with the Tesseract and teleported away. Thanks to the Hulk anyway.
Steve: Well, what are we gonna do now?
Moments later, Sonic, who is on the Blue Star, and Kirby, who just landed in his Parasol form in his Robobot armor.
Tony: You know what? Give me a break, Steve. I just got hit in the head with the Hulk.
Sonic: Bummer! That's not good!
Scott: You said that we had one shot. This was our shot. We shot it. It's shot. Six stones or nothing.
Tony: You're repeating yourself, you know that? You're repeating yourself.
Scott: You're repeating yourself. You're repeating yourself.
Sonic: Chill, Scott!
Tony: Dude, come on.
Scott: You never wanted a time heist, you went on board with the time heist
Tony: I dropped the ball.
Scott: You ruined the time heist.
Tony: Is that what I did?
Scott: Yeah!
Kirby: Come on, you guys! Let's focus on the real deal!
Knuckles: He's right! Let's save the fighting for later!
Steve: Are there any other options with the Tesseract?
Scott: No, no, no. There's no other options. There's no do-overs. We're not going anywhere else. We have one particle left. Each. That's it, alright? We use that, bye-bye, you're not going home.
Steve: Yeah, well if we don't try, then no one else is going home, either.
Sonic: Exactly. We definitely need the stone anyway.
Tony looks at something on his helmet.
Kirby: Tony, what are you looking at?
Tony: I got it. There's another way. To retake the Tesseract and acquire new particles. We'll stroll down memory lane. Military installation, Garden State.
Steve: When were they both there?
Tony: They were there at a time... I have a vaguely exact idea.
Sonic: Momentarily, we could require some Chaos Drives from Space Colony ARK.
Steve, Tony, Scott, Knuckles, & Kirby: ARK?
Sonic: Yes! Where Shadow was created by Professor Gerald Robotnik.
Knuckles: And the space station was starting to hurtle towards Earth before it entered the atmosphere.
Scott: Hope told me about how her dad, Hank knew about Professor Robotnik creating Shadow.
Steve: Well Sam knew also! (turns to Tony) How vague?
Scott: What are you talking about? Where are we going?
Tony: I know for a fact they were there. And I know how I know.
Scott: Who's they? What are we doing? Guys, what is it?
Tony: Well, it looks like we're improvising.
Scott: Right. What are we improvising?
Steve: (hands Ant-Man the scepter) Scott, get this back to the compound.
Tony: Suit up.
Scott: What's in New Jersey?
Tony: 0-4.
Steve: 0-4.
Tony: Uh, 0-7.
Steve: 0-7.
Scott: Excuse me...
Tony: 1-9-7-0.
Steve: Are you sure?
Scott: Cap? Captain? Steve. Sorry. America. Rogers. Look, if you do this, and it doesn't work, you're not coming back.
Tony: (to Scott) Thanks for the pep talk, piss ant. (to Steve) Do you trust me?
Steve: I do.
Tony: Your call.
Steve: Here we go.
Sonic: Good luck, you guys!
Knuckles: And be careful not to get spotted by any workers.
Kirby: Be sure to get the Space Stone!
Steve: Thanks for the tip, you guys!
Tony: Thank you for the advice, Speedy Legs, Spikes, and Puffy!
Both Steve and Tony nod to to trio before activating their Advance Tech Suits to shrink into the Quantum Realm to time travel to 1970, leaving Scott, Sonic, Kirby, and Knuckles with the scepter.
Scott: Well that's awkward.
Knuckles: Tell me about it!
Sonic: They sure became friends again after a political incident back in 2016.
Kirby: It was the Sokovia Accords that tore them apart back then before Thanos destroyed the universe.
Scott: Yeah and I help Cap on planning to find the madman responsible for this madness.
Sonic: And Tails told me the man's name was Helmut Zemo, a Sokovian terrorist, who was part of a kill squad called EKO Scorpion.
Knuckles: Please tell me that guy's definitely HYDRA or something?!
Sonic: I think he's HYDRA.
Kirby: So that's why he's behind the bombing in Vienna, killing innocent people, including King T'Chaka.
Scott: And Cap's friend, Bucky was framed for it, and T'Challa was after him instead of Zemo for killing his dad.
Sonic: Until he followed Steve, Bucky, and Tony while finding Zemo.
Knuckles: Momentarily, Stark found out his parents were killed by Barnes, who was under HYDRA's control.
Scott: And he tried to attack and kill him, but the team fell apart.
Sonic: However, T'Challa arrested Zemo by handing him to Everett Ross for his crimes.
Suddenly, Kirby's time-space GPS starts to beep, meaning that could be a message from Lincoln.
Kirby: (calls to the trio) Hey, you guys!
Sonic: What is it, Kirby?
Kirby: It's Lincoln! And he's on Space Colony ARK in the 1950s.
Knuckles: What's he doing there anyway?!
Kirby: It seems like he was going to prevent something what happened to his sisters a few years ago.
Scott: What has gotten the best of him from a terrible incident from his family.
Sonic: Well it looks like we better help him out!
Scott: You three have one particle left. In case you find the Chaos Drives in that space station.
Kirby: Will do, Scott! But you have to wait until the clock stops ticking before you rejoin Bruce, Leo, and Don.
Ant-Man nods.
Sonic: Are you guys, ready? (Knuckles and Kirby nod at him) Let's go to Space Colony ARK!
Knuckles: Here we go!
Kirby: Get set!
Sonic: GO!
They activate their suits before traveling through time, leaving Scott with the scepter in order for him to return to the present.
In this chapter, Steve and Tony time travel to 1970, where Camp Lehigh, a military installation which became one of S.H.I.E.L.D.'s bases, and a bunker was to house Arnim Zola's brain after his body died due to a terminal illness. Next chapter, Sonic, Knuckles, and Kirby arrive on Space Colony ARK.