(A spaceship is seen heading towards the Earth)

????: We need to warn them about the coming threat.

????: And fast. Or else Ironwood will easily take over the planet.

????: I just hope we can arrive in time.

????: So do I.

(Then the ship goes straight to Earth)

(Meanwhile, Ren Tennyson is seen enjoying the view of Drake City until he receives a message from Arkayna)

Arkayna: I'm sorry If I'm interrupting your peaceful moment, darling. But it looks like some kind of spaceship is approaching towards the city.

Green 10: I'm on my way!

(Some minutes later, the Knights of Tomorrow are seen at the location which the spaceship landed. Then they watch the ship's door open as four girls are seen)

????: Well... Here we are.

(Then the four girls see the Knights of Tomorrow)

????: Oh. (giggles, then waves at them) Hi!

Green 10: (waves back) Hi.

????: Well... My name is Ruby Rose. The Ice Queen is Weiss Schnee, the kitty is Blake Belladonna and the goldilocks is my older sister Yang Xiao Long.

Weiss: (offended) How many times do I have to tell you, you childish dolt? Don't call me like this!

Green 10: (sighs) I better write this in my notebook.

Weiss: (smiles) Sorry for my friend. She tends to get carried away.

Yang: Hey! Don't talk about my baby sister like this!!

Blake: (sighs) Seriously, guys? Seriously? You're gonna start arguing because of silly nicknames? That's real mature. (comes closer to the heroes) My apologies for them. Who are you guys?

Green 10: My name is Ren Tennyson. These four girls are the Mysticons. The pirate is Kitty Boon. The celestials are Solar and Lunar. The Titan is Thanos. The guy with the symbiote is Eddie Brock, and these three are my adoptive family. We are the Knights of Tomorrow.

(Suddenly the trio stopped arguing as they heard all the talk and Ruby is amazed)

Ruby: You're the Knights of Tomorrow? The ones who defeated Necrafa, Ra's Al Ghul, Shao Kahn and even Darkseid?

Green 10: Well...yeah.

(Then Ben 10 and Gwen come in)

Ben 10: I hope I'm not late, guys.

Green 10: Oh I almost forgot. Ruby. Weiss. Blake. Yang. Meet my cousins Ben and Gwen.

Ruby: Well... We are also known as Team RWBY!

Weiss: I know it's soon, but we need to tell you the reason why we're here!

Blake: The General of Atlas known as James Ironwood is planning to take over Outworld and the Earth.

Arkayna: What?

Emerald: Why is he planning to do this?

Yang: We don't know exactly. But Ozpin sent us to warn you about the threat.

Piper: The Outworld... We have to tell them about this!

(Meanwhile, another spaceship is seen approaching the Earth)

????: They warned the people of the Earth about the danger. Now it's up to you four to do the same about the Outworld's people.

????: Got it.

????: All right.

????: We're ready.

????: Sure.

(To be continued)