Ana is transported to a dreamlike and dangerous land where she joins an army of girls engaged in a never-ending war. Even though she finds strength in this exhilarating world, she realizes that she's not the killer they want her to be, and time is running out for her to get home.

Viewers may not be left sending out distress calls, but despite interesting ideas and a solid setup, Mayday leaves a frustrating amount of potential untapped.