The female X-Men are fed up with playing second fiddle, and form a vigilante crime-fighting group called the Bayville Sirens. Scott and Kurt try to figure out what they are up to until an old enemy crosses the Sirens' path.
When the female X-Men are fed up with playing second fiddle, Tabitha decides that they should form a girl's vigilante crime-fighting group. They begin to fight crime at night as the Bayville Sirens, while the rest of the town, as well as the rest of the X-Men, try to figure out who they are until an old enemy crosses their way in the end.