Servo is a warrior program from the Digital World. After Kilokahn escaped from a top-secret, U.S. Government project, Servo chased the rouge program through cyberspace. Servo found his way to Sam Collins' computer. Deciding he was the ideal host, Servo merged with Sam, gave him the Digital Communicator, and upgraded his computer. In the Digital World, Servo is small, but using an Uncompression Software Packet, Servo can grow as big as a Megavirus Monster. However, Servo's time in the digital world is limited to only a few minutes. When he is weak, or stays the Digital World too long, Servo's indicator light flashes.