Danny and Sam entered Fenton Works building. But they were surprised to see a familliar face.
Dani : Hello.
Danny and San : AHHHHHH!
Danny : Dani? It sure was a surprise to see you here.
Dani : You can say that again.
Dani : You both should've seen the look on your faces They were hilarious.
Then Danny's father Jack shows up,
Jack : Danny, Sam Where have you two been?
Danny : Well, we decided to visit Mr. Lancer because it's his birthday today.
Then Maddie shows up,
Maddie : Oh hi sweetie.
Danny : Hi mom. Anyways Why was Dani here? I thought she was living on her own.
Dani : Yeah, but I was looking for you .
Flashback,
Jack : ( Whistling noises) I'll get the door. Hello little girl What's your name?
Dani : I'm Dani.
Jack : What!? You're not my son. You're a little girl. And my son is obviously a boy so what's the deal?
Dani : No! You see, I'm just one of the few successful clones created by Vlad Masters.
Jack : Vlad? He was the reason why Earth was at risk of being destroyed five years ago.
End of flashback
Dani : Then your mom showed up and she said I was cute and wanted to adopt me if you would allow it.
Danny : Well, I always wanted a younger sibling And I could really use some more help when fighting ghost so... Ok.
Eveyone was happy about Danny's decision.