Mary Margaret blev borgmästare i avsnittet "White Out" , det andra avsnittet av säsong 4.
A blackout strikes the town. David and Emma investigate the issue at the border as Mary Margaret stays home. Unexpectedly, Granny, Happy and Leroy persuade her into fixing the power issue. She balks, as this is a task for the mayor, but they believe Regina no longer wants the job. Granny stresses that Mary Margaret cast the last curse, so she must step up. Additionally, Leroy recalls they reclaimed her kingdom in the Enchanted Forest, but Storybrooke is her kingdom now, so she has to rule it.
Klipp av lämplig scen:
DennaraderadescenfrånsammaavsnittharReginapasseratborgmästarenövertillSnö(iställetförstadsmänniskorna):