When Becca Winstone's son, Michael, disappears while studying abroad, there is nothing that will stop her from getting him back. She begins her search in Rome, where Michael was last known to be, and tracks clues across Europe, seeking help from old friends and opening old wounds along the way. The kidnappers soon discover that between her special skills - she was a lethal CIA operative before the death of her CIA agent husband a decade earlier - and a mother's love they have picked a fight with the wrong woman.