Dr Mu is stealing the internet! With IT systems in meltdown all over the world, Rufus is transported to the doctor's evil HQ, Mu Force One, where he is captured by Dr Muhahahaha and hurled into the internet. In a social networking site called Puffin Portal, he teams up with two fluffy avatars, Buck and Gelina, and together they set out to foil the evil Doctor's plans and restore the internet from its backup server.