Dipper was recently told by Mabel that she was lonely so Dipper devised a plan to make his sister happy

Dipper (on his phone)-So you know I have to do this

Pacifica- I understand and besides I need a me day anyway

Dipper-You're the best I love you he whispered hope she didn't hear that

Pacifica-I did and I love you to. Call you later bye

Dipper hang up his phone and proceed to see Stan about letting Mabel off the hook after hearing why he had to do this Stan agreed to do this by un grounding Mabel and charging dipper 20 bucks they were off

Dipper-The first stop is the amusement park then we'll go see you favorite movie after that we will go to your favorite restaurant and you can order anything on me

Mabel-Thanks Dipper

After they went to Mabel's favorite places with her favorite person she finally began to feel happy again

Mabel-This was the most perfect day ever

Dipper-Well isn't over yet we still have the restaurant to go to

Mabel-Thanks Dip this this day has really been per...Hey do you hear that

Both Dipper and Mabel went to the town square to find a crowd of people

Dipper-Hey what's going on?

?-we are throwing tomatoes at this murderer

Mabel-Who is the murderer?

?-Pacifica Northwest

Dipper and Mabel-WHAT!