Cyberchase (2002)

Season 2: Episode 5

Ivanca the Invincible has a treasure map that Dr. Marbles mails to Motherboard's "buddy list." However, the virus also causes her to mail it to her "baddy list," which gives Hacker the map. Meanwhile, Digit is on an undercover mission for Motherboard, going to Hacker pretending to have reverted to the dark side, into thinking he's turned evil again, to stall him long enough so the kids can find the treasure first.