Android 14 was raised in Dr. Gero's lab and was converted into an android when she turned fourteen. However, she did not hold a grudge against him, like 17 and 18 did. She followed her orders, until she was programmed to kill Son Goku. She refused, having a feeling that she would someday wed a son of the Sons family. Her rebellion began. She stopped paying attention to her training, ignored Gero's orders, and misbehaved so much that Gero grew frustrated. He deactivated her, and left her dormant. She was not awakened until 17 and 18 were reactivated. When they insisted on finding Goku, she refused. She sped off to the legendary warrior's home in time to get Goku and Chi-Chi to safety.