A vulcanologist arrives at a countryside town recently named the second most desirable place to live in America and discovers that the long dormant volcano, Dante's Peak, may wake up at any moment.
A little girl's imaginary friends come to life when she goes through her great-grandmother's antique mirror, a la Alice, after she sees it glowing.
Dr Tuttle uses the Doppelganger to breach a mirror, letting Dragora, Dabble and Swanson into the people world. Dragora uses this opportunity to get revenge on Mary Margaret, by way of having her over for tea.