Typhoid Mary poses as a teacher at a school for the blind in order to interfere with Power Pack and their happy home life!

Typhoid Mary is hired by Dr. Doom to ferret the secrets of Kymellian power transfers from Power Pack. She poses as a regular person and strikes up a friendship with the family, particularly Alex. She terrorizes James Power and some of the children's friends, but eventually leaves them alone. However, she tells Dr. Doom that she killed James Power in order to destroy the siblings' unity.