(A/N: Here's the season 1 finale of the series. I hope you're ready for the battle against Vilgax. And this is the perfect opportunity for Zack to have his new Alien form that'll literally shock you to the core. I hope you're excited for that. Now, onto the finale.)

(The final episode of Season 1 begins with Zack who suddenly wakes up, screaming.)

Zack: "Aaaah!"

Max: "Another nightmare, Zack?"

Zack: "Yeah, and it's that same alien again. Only this was, he was huge and wearing armor."

Gwen: "Looks like your nightmare is getting worse. You gonna be okay?"

Max: "It was just a bad dream, son. We can talk about it in the morning." [Walks away.]

Ben: "I don't know, it seemed so real to me. He looked right at me and said, "I'm coming for you now.""

(Max is shocked.)

Max: "Change of plan, we're hitting the road right now."

Ben: "Grandpa, it's 3 in the morning."

Max: "Best way to beat the traffic."

(Max starts the RV and drives.)

(They sped off down the road, without stopping. After awhile, the kids notice how fast Max is driving.)

Kelly: "Hey, Max, what's the rush?"

Max: "We have to make to Mount Rushmore by nightfall."

Ben: "Ugh, I'm so bored."

(Ben turns to the table and sees that Gwen is on her computer with Zack sitting next to her seeing whatever she's doing while Kelly was reading a magazine about sports cars and Cass reading a small book.)

Ben: "Let me play a game."

Gwen: "I would but your brother and I are using my computer. This is a good opportunity to entertain yourself."

(Ben forms a sly smirk and without anyone noticing somehow, he activates the Omnitrix and transforms into Upgrade, highjacking Gwen's computer.)

Gwen: [yelps] "Ben! Get out of my computer!"

Upgrade: "What? I'm just entertain-whoa! What's up with all these notes you have in here?"

Gwen: "Why do you care? Just get out!"

Upgrade: "But they're all about you and my brother in these." [Gwen blushes]

Gwen: "Ben, I mean it! Get out!"

Upgrade: "What in the- High School, Prom... Marriage and Kids!!! Whoa!"

(Both Zack, Kelly and Cass stopped what they were doing and Zack blushed lightly while two girls glare at Gwen.)

Max: "Ben, now's not the time to go alien."

(Ben morphs out of Gwen's computer.)

Upgrade: "Just having a little fun."

Max: "We don't need to attract attention to ourselves right now."

Cass: "What kind of attention could he attract in here?"

(Ben's Omnitrix timed out and turn back to normal.)

Max: "Never mind."

(All of the kids look at Max with confused looks until they both shrugged. Zack leans into Gwen's ear, whispering.)

Zack: "I'll be sure to get us a nice big house for our kids to stay after our wedding."

(Gwen's eyes jolt wide open as she looks at Zack with an enormous blush. All he does is wink and puts his arms around her waist. Gwen leans into him with a largest smile forming on her face.)

(On the freeway, they were passing by Rapid City and noticed a large amount of smoke coming from the city. It wasn't until a huge fiery explosion is seen and the Tennyson brothers decided to jump into action. After the duo transform into Heatblast and Swampfire, they get out of the RV and use their flames to propel themselves towards Rapid City.)

(Once the two heroes arrive, they see that the city is being attacked by insect-like drones.)

Heatblast: "Why don't you punks pick on someone with some real fire power."

(The duo then notice that they are surrounded by dozens of drones.)

Swampfire: "I get the feeling they were expecting us."

Heatblast: "Yeah, I think you're right."

(The duo are able to easily and quickly dispose of the drones. However, not long after they are caught in the energy bindings that have them pinned against a building. The two look up to see a large spiked ball approach them. When it stops, an enormous alien steps out of it.)

Swampfire: "Hey! That's the alien from my nightmare!"

Vilgax: "At last, we meet. The beings who have caused me so much trouble."

Heatblast: "Who are you?"

Vilgax: "I am Vilgax. And I have come for the Omnitrix and the Ultimatrix."

Swampfire: "Sorry, pal. I don't know what your deal is, but these watches are stuck with us and you can't have them."

(Zack then uses his vines to tear his bindings off while Ben melts his. The two immediately begin to attack Vilgax as a team. Ben leaps into the air bringing down a large fireball onto Vilgax while Zack jumps up and uses all his strength to give Vilgax a gut punch. However, despite their best efforts, their attacks did nothing to the juggernaut that is Vilgax. Vilgax simply picks up the two heroes by their throats and tosses them through half a dozen buildings like they were ragdolls.)

Heatblast: "Okay... This guy is really tough!"

Swampfire: "Our attacks did nothing."

(Vilgax lands on the street in front of the brothers, forming a large crater.)

Heatblast: "We have to slow him down somehow!"

Swampfire: "Melt the tar in the road!"

(They unleash a torrent of flames that floods the road in melted tar, momentarily stopping Vilgax. The Rust Bucket then stops in front of the duo with Kelly bursting the door open.)

Kelly: "Boys, Grandpa says to come in, now!"

Swampfire: "Agreed, let's go!"

Heatblast: "But-"

(Both the duo went back to normal after their watches timeout.)

Zack: "That alien's taken care of, now let's go!"

(They get in the RV and Max quickly drives off.)

Max: "Believe me when I say: You do not wanna pick a fight with Vilgax."

Ben: "How do you know his name is Vilgax?"

Gwen: "Grandpa, what aren't you telling us?"

(Their conversation was cut short when two of Vilgax's drones attack the RV. They are able to avoid them, but the brothers transforms into Stinkfly and Big Chill. They easily destroy the drones, but are quickly besieged by Vilgax. After a one sided game of Cat & Mouse, Vilgax finally catches both airborne heroes.)

Vilgax: "I grow tired of this!"

(Using his claws, Vilgax forces the brothers out of their alien forms by tapping the Omni symbols.)

Ben: "HEY! How'd you do that?"

Vilgax: "Children? The most powerful weapons in the universe are in the hands of mere children?!"

(Vilgax attempts to grab their devices but they both emit green and red electricity and blast Vilgax into a nearby building.)

Vilgax: "It appears as though they have already merged with your own DNAs."

Zack: "Ben, run!"

(The two defenseless boys try to run, but Vilgax grabs them.)

Ben: "I, uh, don't suppose that means you're gonna let us go, does it?"

Vilgax: "Hardly."

(The large red mace rolls up to Vilgax. He tosses the brothers inside the red mace. He then gets in and drives off, with Zack and Ben as his captive.)

Vilgax's Ship...

(Vilgax has Zack and Ben strung up in energy binders again, only now their left arms are locked in large stasis tanks.)

Vilgax: "Children. I should have suspected as much. The Omnitrix and the Ultimatrix are being used as play-things."

Ben: "Hey! My brother and I saved a lot of people by going hero!"

Zack: "Although, you'd been using the Omnitrix for your personal gain a bunch of times, Ben."

Ben: "Which side are you on?"

Zack: "I'm just being honest! Geez."

Vilgax: "The both of you hold the keys to a power struggle so ancient, so vast it is beyond your feeble comprehension. Picture an entire army, each in command of an Omnitrix and Ultimatrix, and all at my command. I will be invincible. I will rule the universe and the only things standing between me and my destiny is the both of you!"

(An array of tools rises up from the floor around the Tennyson brothers.)

Ben: "Got any ideas, bro?"

Zack: "I'm thinking about it."

Vilgax: "Don't even try to escape, humans. There is no escape from the almighty Vilgax. Prepare for take-off. Once we're in orbit, I will finally have the pleasure of destroying this miserable planet, once and for all!"

(Vilgax brings out a large energy saw and is about to cut off Zack's arm as Ben anxiously looks on, trying to break free and rescue his brother. But as luck would be on their side, the Rust Bucket crashes through the hull and rams Vilgax into the wall. Max then steps out of the RV wielding a large energy cannon.)

Max: "Claws off my grandsons, Vilgax!"

Zack/Ben: "Grandpa?!"

Vilgax: [Glares at Max] "Tennyson!"

(Max shoots Vilgax, sending him through the wall. Max drops the cannon and goes over to get the brothers out. A power surge affects both the boys causing the both of them to randomly turn through their aliens, allowing them to be free. They begin to tear apart Vilgax's drones. However, that ends when Vilgax has Max pinned to the floor under his foot at the hull beach to his ship.)

Upgrade: "NO!"

Big Chill: "Get away from him!"

(The brothers tackle Vilgax off the ship into a free fall. The three land on Mount Rushmore and another battle ensures. With the boys randomly transforming from alien to alien, it gives them an element of unpredictability over Vilgax. However, even that strongest forms like Humungousaur and Four Arms are easily dispatched by Vilgax, who can make himself even stronger by retracting the pistons in his arms. At every turn, Ben and Zack are outmatched and outclassed by the experienced and battle hardened alien warlord. The two manage to slip away as Vilgax is distracted by his ship crash landing in the forest below. As Zack and Ben go to find their grandpa and the girls, they found them being captured by Vilgax while the RV was on fire.)

Ben: "NO!"

Zack: "LET THEM GO YOU BASTARD!"

(Zack then transforms into a new different alien. Which is something unexpected and unreal. His most powerful form. One that shocked his brother and Vilgax to the point he drops Max and the girls.)

(A/N: Imagine Zack's clothes and Ultimatrix are red versions.)

Humorus: "Humorus!" [Glares at Vilgax] "Step away from them, Vilgax, now!"

Vilgax: "What nonsense is this!? I'd never seen this alien before!"

Humorus: "Well, I guess my imagination is my most powerful weapon of all too."

Ben: "Whoa! Bro, is that you?"

Humorus: [Turns to Ben] "Ben, check on Grandpa and the girls and get them out of here. I'll handle this bastard myself."

Ben: [nods] "You got it, bro."

(Zack, in his new Alien form, charges at Vilgax with him doing the same. Meanwhile, Ben runs to check on the others.)

(As Humorus and Vilgax collide, the two create a shockwave on impact. The two are shown to be clasping hands, pushing against each other. Neither giving an inch.)

Vilgax: "Finally, a worthy opponent. I don't know how you'd archived this new kind of alien, but it won't be enough to beat me."

Humorus: "Let's agree to disagree. You're going to regret ever invading to my planet."

(The two then proceed to have a boxing style slugfest as they tear apart the countryside as if it was made of tissue paper. Vilgax tried to lend a punch at Zack, but he soon dodged with instant speed like Sans does in his game and hits Vilgax with a Bone Blast technique, sending the alien warlord to fell onto the ground. As Vilgax's ship begins to take-off, Zack walks up to Vilgax, picks him up and gets in to his face.)

Humorus: "Remember this, Vilgax. This planet's has gotten herself new protectors. And we will never rest to someone like you or anyone else who tries to takeover the world. Or universe for that matter. So go ahead and plot your revenge on us for all we care. We'll be waiting."

(And with that all said and done, Zack throws Vilgax into his spaceship as it reaches the lower atmosphere and before long the ship explodes with Vilgax inside.)

Afterwards...

(Zack, still in his Humorus form, rejoin his family.)

Kelly: "Whoa. A new alien member of the team, big boy~"

Humorus: "And a powerful one too."

Ben: "Man, I'm so jealous!"

Humorus: "I'm sure your watch will be able to get you new aliens soon. But now, Grandpa. We need to talk."

(The final episode of Season 1 ends with everyone smiling and looking up to the sky as pieces of Vilgax's ship fall to the ground.)

(Fade to black.)