One month since system operation began, and all is well, with Scrooge just taking it easy in his office. Huey is still upset, and joins his mom in not liking Gyro. Webby and Dewey occasionally ride on one of them just because. Louie uses it to screw with the Beagle Boys, taunting them into attacking him only for the system to protect him. Then...

BOOM
CRASH

"What in blazes?!" Scrooge looks outside his window, and what he sees is bad. "Oh boy..."

There, ripping up the city, is the defense system. It blasts the streets, and drives people inside.

The family rush to the office.

"Unca Scrooge! What is going on?!" Donald asks.

"Gyro's blasted system has gone mad and is destroying the city!" Scrooge says.

"Figures one of Gearloose's inventions would try to destroy everything! Man barely qualifies as a person..." Della huffs.

"Yeah, you said it..." Huey says, folding his arms over his chest.

"So, what now?" Louie asks.

"Well, so long as we stay inside, we should be fi-"

BOOM

A hole is blasted into the mansion as some UAVs hover down, others strafing the premises, the family barely dodging.

"Plan B. RUN!" Scrooge shouts as they scatter, Webby going with Beakley, the boys with Della, and Donald with Scrooge.

"Wait! Where's Launchpad!?" Huey asks worried.

"He's in St Canard with Darkwing!" Dewey says, running with his mom and brothers, a UGV chasing them. Things were definitely bad as the various robots had red sensors instead of white (or blue, or green).

Della and her sons run through the halls, getting away until. "Oh no! A dead end!" They are stopped a wall, trapped in the narrow hallway. They turn and face the approaching machine, terrified. Della grabs her boys, pulling them close and turning her back to the machine and putting herself between them and the robot, shielding her sons, all four trembling as the weapons charge. All seems lost, until...

PEW
PEW
PEW

Laser blasts hit the machine as a familiar war cry is heard as a light purple/magenta and gold form jumps onto the machine and spears it with a golden spear through the head unit, destroying it. The family turn and see their savior, Della's eyes wide with joy.

"PENNY!" Della cheers.

There stands Penumbra, protectively over Della and her sons. "Della. Red, blue, and green Dellas, are you alri-" Penumbra is cut-off mid-sentence by Della rushing over and hugging her.

"You saved us! Again!" As Della hugs her BFF tight.

Penumbra smiles lightly and hugs back, before getting serious again. "I rushed out when I heard the commotion. What is the situation?"

"Gearloose's citywide defense system! It's gone crazy and is trying to kill everyone!" Huey says, having and 'I told you so' tone.

"Gearloose? Is he some sort of mad scientist trying to destroy you?" Penny inquires.

"Mad scientist? Yes. After us? Unfortunately no. As much as I hate the man, he is a family friend and employee of uncle Scrooge." Della huffs.

"But he created these machines that are attacking you all?" Penumbra asks.

"Yes." Huey confirms.

"Then he will help us stop them!" As Penumbra picks up Della and carries her under arm, rushing off to find the others, the boys following.

They rush through the manor, taking out any drones they come across. They find Beakley and Webby starting to get overwhelmed by dozens of smaller ground drones that use swarming tactics.

"Small Della!" Penumbra rushes in, blasting and swiping away the numerous smaller drones, quickly destroying them all and saving Webby and Beakley.

"Guys!" Webby cheers.

"Perfect timing. I was starting to fear we might have been done for." Beakley thanks.

"Where is Scrooge and Della's brother?" Penumbra asks.

"I think I saw Uncle Scrooge and Donald heading to the boat." Webby says.

Then, from that direction, they hear Donald yell in pain, no doubt shot in the butt.

"Uh oh..." Dewey says as they all rush outside, fighting through the hoard. Dewey almost bolts out but is pulled back in by Della as a UAV strafes the ground where Dewey would have been. Dewey gulps. "T-thanks mom..."

"How're we gonna get to Uncles Donald and Scrooge? Take one step out there and we get shot!" Louie asks.

Then, as if by miracle, one is shot down, crashing into the Manor's pool, barely missing the houseboat. Everyone looks and see a familiar sight, to Huey's elation.

"Oh yeah! Take that Gyro! Gizmoduck is back in action!" Huey shouts as he heads outside, others following.

Gizmoduck is using missiles and lasers -and pies- to shoot the numerous drones down, being rather effective. He then lands and checks on them. "Is everyone alri-oh?" As Huey rushes up to hug him.

"I knew Gyro couldn't get rid of you! Gizmoduck is here to stay!" Huey says.

"Red Della! Back away from the machine!" Penumbra prepares her blaster, not realizing Gizmoduck is an ally, or even a person in a suit.

"Wait! No! He's on our side!" Huey defends, making himself a shield.

"Easy there, I-I'm trying to protect you!" Gizmoduck tries to reason, Penumbra not listening. Seeing he has to, Fenton removes the Gizmoduck helmet to show he is a person. "Please! Don't shoot!"

Penumbra goes at ease. "Are you Gearloose?"

"Uh, no. My name is Fenton Crackshell-Cabrera, Doctor. I work with Doctor Gearloose at McDuck Enterprises an-" Fenton explains as Penumbra grabs him.

"Take us too him! Now!" Penumbra orders.

"Um, alright, but, may I be allowed to save Mr McDuck and his nephew first?" He asks, somewhat afraid, to which Penumbra sighs and lets him. "Very well!" Fenton puts the helmet back on and flies into the now sinking houseboat, carrying Scrooge and Donald out, and setting them on the ground, the family reunited, hugging as Penumbra and Gizmoduck fight off the machines.

"Kids! Thank heavens yew're alright!" Scrooge says, relieved.

"Uncle Scrooge, we have to get to out of here! It isn't safe here!" Della state.

"Aye. We have ta' get to the Bin, I need a word with Gyro..." Scrooge says, none-too-happy that his family was nearly killed.

"Right! Good thing Gizmoduck is here to protec-" Huey starts, when...

"Aaahh-Oof!" As Fenton smacks into the ground in front of them, tiny pieces of the gizmoduck raining down, the suit thoroughly destroyed.

"Ah phooey..." Huey says distraught.

"Hey, we still got Pen-" Della starts when.

"Gah!" Penumbra backs up, her blaster shot and destroyed, pulling out her spear as defense.

"Ah phooey..." Della says.

"Well at least there's not-" Louie starts, when an explosion blows a hole through half the manor, and a bunch of vehicles start to approach through it.

"Ah phooey!" They all shout, backing up together, cornered by all the vehicles, which are ready to fire. All seems lost, when...

SMASH

The Sunchaser slams into the UAVs, then hitting the ground units, digging into the ground, grinding to a gradual halt. Launchpad then leans out the window. "Hey Mr McDee! I'm back early! Did I miss anything?"

Everyone just blinks at the accidental rescue. Why are they not more surprised?

Launchpad then notices half the manor is gone, blinks. "Uh, Mr McDee, let me be the first to say that, uh, I did not do that this time..." He states.

"Forget about that Launchpad! We need yew ta' get us to the Bin! Now!" Scrooge says.

"Sure thing Mr McDee!" As Launchpad hops out of the crashed plane. "C'mon, we'll take the limo!" As Launchpad leads the way, everyone rushing to the garage. They all load up and LP floors it, everyone staying low. For once, Launchpad's reckless neglect for traffic safety laws works out, barreling through machines and swerving, doing whatever it takes to get to the Bin.

"Oh, that Gyro! First he fails to build the Spear properly, getting me stranded on the moon and missing my boys hatching AND the first eleven years of their lives! Then he make the only way I can survive be a gum he just HAD to make Black Licorice! And now one of his cockamamie inventions is trying to kill me and my family!" Della rants, rather ticked off.

"And he tried to make Gizmoduck obsolete, and nearly killed Fenton when the Gizmoduck armor was destroyed!" Huey adds with a huff.

"Can we please at least give the man a chance ta' rectify his mistake even after he promised nothing could go wrong and is going to cost me a fortune with this!" Scrooge states as the limo smashes into the car garage of the Bin, everyone exiting and making their way to the elevator, and down to the lab.