Eighteen years ago, Victoria Moretti, the feared "Black Queen" of the underworld, vanished after her husband's death to raise their daughter Sophie away from the mafia. Now an ordinary single mother working at a fried chicken shop, she's mocked by rebellious Sophie—who sneaks into a nightclub and is kidnapped by an organ trafficking ring. Racing to save her, Victoria's long-buried combat skills resurface, and gang members kneel before her Black Lion emblem.