at the nazi HQ, we see a lot of nazi troops marching around the base while the nazi scientists were testing the new weapons and tech, which were given to by hanz adler and a mysterious stranger who brought him to 1940 to change the past in the first place.

speaking of nazi HQ, here's what it looks like

inside of it was a meeting in the war room with past hitler hosting it as the generals were discussing things, like ending the war in an instant

nazi general 1: mein fuher, we need to end the war now so you can rule the world.

nazi general 2: the comarade is right, this war has gone on long enough, we have superior technology and fire power thanks to hanz and the technology and weaponry he brought from the future in other words....we basically won alre-

he was cut off as hitler slammed his fists on his desk

hitler: NEIN!!!! we need to cripple the enemy first, then we'll win. with hanz's knowledge about the future and the fact he told me that we lost, i swore to win no matter what. i can't make zhe exact same mistakes again. do you understand??!!

he yelled as his generals nodded in understanding

hitler: good...and besides, i finally have my own personal train.

he says as he showed a picture of said train

but then all of a sudden, hanz adler showed up, badly hurt as the nazi generals notice his mask's left eye cracked

hitler: ah, hanz....what happened to you?

he asked

hanz: (sigh) i have good news and bad news, mein fuher.

he said getting hitler's attention and decided to end the war meeting

hitler: generals, leave us.

he said as the generals get up and leave the war room, leaving hanz and hitler to be the only ones in it

hanz: we did what you asked me and my troops to do, and it was going as planned as we attacked ben mcfoley and his squadron.

he said, making hitler smile

hanz: but the bad news is that we were ambushed by a new enemy group, led by a boy with a strange device that allowed him to change form. here's what zhey look like.

he said as she showed a hologram of jacob and the gang attacking hanz's troops and the part of jacob deforming from his mandalorian form, which suprised hitler as he started to think about what hanz showed him until he spoke up

hitler: you're dismissed, order your troops to rest up and train harder so that way you'll have the advantage to kill vhis new enemy.

he said as hanz saluted

hanz: HEIL HITLER!!!!

he said as he left the war room, leaving hitler in it as he sat down on his desk when a mysterious figure showed up behind him

hitler: so, it seems that you're right after all...they've arrived to change the past back to it once was with me and my army losing the war. now they're going to be a problem from preventing me of becoming ruler of earth and we need to Zhink of a new plan, understand?

he said as the figure nodded as hitler looked out the window from his war room and smiled evilly

hitler: i.. vill...vin.

he said as he will stop at nothing to win WW2

(with jacob, the gang, and the allies)

we see the bus that jacob was driving, which carried his harem, friends, the gravity falls gang, ben mcfoley, malcom, and george on said bus while the rest of ben's sqaudron were following the bus with what's left of the vehicles they had

soon, they've arrived at jacob's house and when they entered it, the rooms were dark, which made jacob, his friends & harem feel that something isn't right. when jacob turned on the lights, they see that carol, katie & marcy tied up and had duct tape on their mouths, alarming the group & the allies, but before they could react by reaching for their weapons...

???: i wouldn't do that if i were you.

the voice was spoken and revealed to be agent 2, who had a gun pointing at carol's head, scaring her and making jacob pissed off

jacob: how did you get out of your bonds?!

he demanded to agent 2

agent 2: i woke up 10 minutes ago, freed myself by using a secret knife i had in my back pocket, then used knock out gas and tied your family up and started waiting for you and the others to come back and, well, here we are now.

she explained as jacob's eyes twitched in annoyance

jacob: well, i can't let you stop us from killing hitler because i have to set things right...and the fact i have many ideas for that bastard, like ripping his mustache off in a painful way.

he said, making the group and allies look at jacob with a lot of ''you serious?'' faces until agent 2 started laughing crazy

agent 2: you think that i work for that bastard with the stupid mustache?! i'm against that racist maniac!!!!

she said angrily, making everyone's eyes widen

bobby: what do you mean?

he asked as agent 2 took a deep breath and spoke up

agent 2: it was part of my mission...to gain the dhork agents trust, find their secret project: a time machine, i was going to use it to change the past, or at least i was until YOU SHOWED UP AND RUINED EVERYTHING!!!!! and now (chuckles evilly) it's time to say goodbye (points gun at carol) to your family, that's right, i know you lost your dad and it's time to lose your mom and sisters. but first....HOW DID YOU GET THAT WATCH AND WHY ARE YOU HERE!!!!!???? ANSWER ME!!!!!!

she explained her true colors and demanded to jacob and the group, who are shocked that she isn't working for the nazis and that she's on a mission similar to the group, but stan wasn't buying her story as he spoke up

stan: do you HONESTLY think any one of us are gonna believe that story?!

he asked

ford: stanley?

he said in a stern tone until...

agent 2: HOW DARE YOU SAY THAT TO-

she was cut off as she gets electricuted by zuzu's gauntlet, who aimed it at agent 2 just to shut her up as the group and allies look at her

zuzu: sorry, i couldn't listen to any more of that.

she said as jacob looked at ben, who looked stunned at what zuzu did to agent 2

jacob: you ok, ben?

he asked to ben, who snapped out of being stunned and had a stern look on his face

ben: ok, my squad and i need answers about what's going on and just to let you jacob, i know that your last name is mcfoley.

he said, making jacob, his friend, harem, even the gravity falls gang shocked that ben mcfoley knows jacob's real last name

jacob: (wide anime eyes) how did you find out?

he asked as ben tapped his head

ben: it's part of the mcfoley family to tell who's lying and who's telling the truth, now may you also tell me that why there are demons here, but in human disguises and yes, i can tell too because they have razor sharp teeth, which is a dead giveaway if you think about it.

he said, making them shocked even more as jacob forgot that the skill ben has is part of the family as stopped being shocked, took a deep breath and spoke up

jacob: ok, we'll tell you and just to let you know, it's a pretty long story.

he said as ben, george and malcom sat down while ben's troops untie jacob's mom and sisters as the screen went dark

end of chapter, hope you liked it.