A sister's work is never done, not when there are wrongs to right and underdogs to defend. Just returned to their mountaintop hideaway after their latest successful mission, the seven fearless friends enjoy a celebratory dinner and retire to bed. But within an hour, an alarm sounds, and the ladies rush into the compound in time to see Myra and their mentor, Charles, climbing aboard a helicopter. All that's left is a mysterious note, signed by Charles.