This is a crossover with Star Wars, since the X's sometimes go into space. This could be their last adventure.
Ch.1 - Slaughter
Mrs. X had just launched the family into space. A huge space battle was going on, led by Glowface's army against the small ship of the X's. Tuesday was operating the laser turret to the south side, and was steadily wiping out infantry ships on the front lines.
"Look at my new sonic destroyer!" Truman exclaimed. "it can shatter all glass within a six mile radius!" He proceeded to demonstrate, and wiped out Tuesday's turret's glass protection.
"You idiot Truman, I'll kill you!"
"Tuesday, get back to your post" instructed Mr. X
Suddenly, a blast was fired from the west side of the starship phalanx. It struck the shields of the X's ship and knocked them out. A series of particle blasts from the armada aimed at Tuesday's turret. In her only panicking defense, she fired lasers to destroy the blasts in midair. It was in vain, however, as seven blasts hit the turret from all sides. It was consumed by a ball of fire. When the smoke cleared, not even Tuesday's charred remains remained.
"Tuesday, NO!" cried Mrs. X
Meanwhile, on the remote planet of Mustafar in the outer rim, two sith lords were in conversation.
"The battle is causing significant damage to our trade routes. Ships are being lost. We don't want the rebellion to be stronger now", said Anakin Skywalker, now christened Darth Vader.
"Then wipe them out!", cried Lord Sidious in an annoyed tone. "Use your Jedi Starfighter. Leave NONE alive on either side"
"It will be done, master", replied the apprentice.
"That's an odd looking ship" said Mr. X, as a new ship began to appear on their scopes coming from the left.
"I don't think that's from SNAFU" realized Mrs. X
The ship moved towards the X's ship. Many of Glowface's army's fighters began firing at it, suspecting it to be in league with the X's. The fighter was very acrobatic, however, and maneuvered away from the army, but not before destroying a few ships in the process.
"I think it's heading for us!" exclaimed Truman.
The ship began to accelerate, and was clearly heading for the opening where Tuesday had been killed. It crashed through, creating an even bigger hole, which Home base repaired. Before any of the X's had time to react, a cloaked, black figure jumped out of the craft almost superhumanly. A blue glowing stick ignited. It made a quick slash and with a buzz, Truman lost his head. The two parents, without time to react, grabbed their guns and began firing, but the skilled sith lord blocked the fire, and with a quick stab to the stomach, took out Mrs. X.
"You fiend, everyone I have known is dead! You will pay" cried Mr. X.
"Even your rage cannot destroy me. See you in hell"
Anakin made a slashing move with his lightsaber, and Mr. X threw his gun in defense, but it did no good. Luckily, it took Anakin off guard, and he made a minor cut in the X's right arm.
Mr. X surprised anakin when he pulled out a staff of his own, which could block anything, even a lightsaber. This was similar to a Force Pike used by General Grievous' MagnaGuards. Every slash attack that anakin made was barely blocked, and mr. X grew weak very quickly. Anakin first severed his legs, then arms, and then painfully cut his face before severing his head.
"You fool! I can make copies of them!" cried the vengeant Home Base.
A quick stab in the center of Home Base quieted him. Anakin returned to his fighter, and used his main missiles to quickly destroy the ship.
(disclaimer: Star Wars is owned by Lucasfilm and The X's is owned by Nickelodeon)