Ban Ji-eum can endlessly reincarnate. But when her 18th life gets cut short, she dedicates the next one to finding her now grown-up childhood love.

At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part.

Tragedy, betrayal and a mysterious discovery fuel a woman's vengeance for the loss of her tribe and family in this special episode of "Kingdom."