Chapter 2:

At a press conference, rich business tycoon, Oliver Jordan was introducing his company's latest project. "Behold, a robot that does it all for you! We call him 'Charlie'! Charlie, demonstrate!"

Charlie then demonstrates what he's capable of and everyone impressed.

...

The dog's running and the local sheriff, Rufus Buzby notices him. "Hey, we really need to get a dog catcher! Halt!" He chases after the dog.

...

School has ended and Shaggy's on his own. Then the dog bumps into him. "Woah, you okay?"

"Ra ran ris rin rouble rat ra rastle rith ra rooky right rand ra roliceman's rafter re!"

"Wow, you sure bark funny," says Shaggy. The dog then goes to hide and the Sheriff shows up.

"I'm looking for a stray dog," says Sheriff Buzby, "I'd say he's a great dane!"

"Uh… haven't seen him," says Shaggy. The sheriff then leaves.

...

Shaggy finds the dog hiding in his yard. "I don't think you should hide here… then again, you're like, a wanted dog now… you may need a place to lie low… guess we can make this work!"

...

"Okay, first, you're going to need a name," says Shaggy, "Fido? No, too cliché. Rex! Wait, I got it! I heard a rumor about these two kids that went on underwater adventures with a whale and a seal! Moby?" The dog shook his head at that one. "Okay, how'bout Scooby!" The dog likes that. "Yeah… Scooby-Dooby-Doo! What do you think?"

"Rooby-Dooby-Doo!"

"I guess you like it," says Shaggy.

...

And from there, Shaggy and Scooby became the best of friends, but Scooby was forgetting something important.