(Ben 10 and his crew are seen returning back home, but much to their surprise, their headquarters got destroyed.)

Grimlock: (shocked) The hell?

Ben 10: Oh dude...

Gwen: (sees a note) Hey, look.

Sludge: A note?

(Ben 10 picks up the note which says that the rest of the Alien Dino Thunder Force is moving to a different place.)

Slug: Great, someone attacked our headquarters and now the others moved somewhere else without telling us where.

Ben 10: Omnitrix, scan who did this to our headquarters.

(The Omnitrix scans the ruins and finds the footprints of the Union Fake Heroes.)

Ben 10: The Union-Verse? Again?

Gwen: They never learn.

Grimlock: They must have returned for revenge.

Ben 10: We need to find our friends, and fast.

????: Finally.

(They turn to see a green haired boy with a transformation device.)

????: You're exactly where I want you to be, Ben Tennyson.

Ben 10: (confused) Uh... how do you know my name, sir?

????: Call me Noah, and I almost got my ass kicked by one of yours.

Gwen: (confused) And who could be it?

Noah: Lucas Wilson, also known as Kamen Rider Zero-One. But it doesn't matter. (to Ben 10) Once I drain one of your aliens' powers, I'll be able to get back at him.

Ben 10: (smug) Oh yeah? And how do you intend to do that?

Noah: (pulls out his Mega Ulorder) I hoped you'd ask.

(Noah places the Mega Ulorder in his waist, and then he pulls out a green eyecon, and presses his driver's switch.)

STANDBY!

(He inserts the eyecon in his Mega Ulorder.)

YES SIR!

(He presses a button, and a Ghost Parka comes out.)

LOADING!

Noah: Henshin!

TENGAN! NECROM! MEGA ULORD! CRUSH THE INVADER!

(Noah becomes Kamen Rider Necrom.)

Necrom: Kamen Rider... Necrom!

Ben 10: (stern) A good blow from Heatblast will send you running!

(Ben activates his Omnitrix.)

Ben 10: IT'S HERO TIME!

(Ben 10 becomes Heatblast.)

Ben 10: (smirks) Oh yeah, today I'm on fire!

(Necrom smirks as Ben 10 shoots some flames, and he dodges every fireball before pressing the button in his Mega Ulorder.)

DESTROY! DAI TENGAN! MECROM! OMEGA ULORD!

(The body and mask of Necrom's form glows and gets enveloped in a green flame, and then he fires a punch at Ben, who tries to counter with a fire blast, but the green energy punches through him, making him fall down.)

Grimlock: (worried) Ben!

(Necrom then fires another energy punch, and it hits Grimlock, bringing him down as well.)

Necrom: Now to get what I came for.

(Necrom approaches Ben, and drains his Heatblast power.)

Necrom: Yes! I can feel it. Now I can exact my revenge on Zero-One!

????: Let's go, Grendizer!

Necrom: Huh?

(Everyone turns to see Grendizer.)

Grendizer: Shoulder Boomerang!

(Two boomerangs hit Necrom, and the rider feels the cuts.)

Necrom: Damn it... that hurts!

(Inside of Grendizer is Hilbert Fleed.)

Hilbert: I won't let you get away with your plans.

(Back to the fight, Grendizer charges at Necrom.)

Grendizer: HANJUURYOKU STORM!

(Grendizer shoots a beam which hits Necrom, forcing him to revert back to his human form. Noah looks at his Mega Ulorder and finds out it got damaged.)

Noah: (angry) You bastard! I'll remember this!

(Noah disappears in a green mist, and then Grendizer turns to the Alien Dino Thunder Force.)

Grendizer: It's been so long, Gwen.

Gwen: Great, it's my ex.

Ben 10: I wish Kevin was here.

Gwen: (glares) I heard that, dweeb!

Grendizer: (chuckles) And still bickering with your cousin, as usual.

Ben 10: What brings you here?

Grendizer: I'm looking for Isaac Kabuto, but when I saw you guys in trouble, I decided to help you.

Gwen: (sarcastic) Gee, thanks!

Sludge: We need to take Grimlock and find our friends.

Grendizer: Follow me, I know where you can stay for a while.

(As they follow Grendizer, Ben 10 has something in his mind.)

Ben 10: (in mind) Who was that Noah guy, and why would he want Heatblast's powers? It doesn't matter now! Once I recover, I'll go after those Union bastards and make them pay dearly for destroying my headquarters.

(Then the screen fades out.)

A/N: Noah is an OC from AlstonChanAlstonChan