Shaggy & Scooby-Doo Get a Clue! (2006) : 2x9

After hearing Shaggy and Scooby comment on how he isn't good at butlering or much else, Robi thinks he's failed at his job and leaves. He leaves Sparky to take his place transmitting Uncle Albert's messages. Soon Agents 1 and 2 find him at his new job in a criminal hangout. Now, unless Shaggy and Scooby stop him, Dr. Phibes will be able to gain access to Uncle Albert's inventions, as well as discover where he's hiding. And to make matters worse, Robi won't survive the downloading process.