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.”

Peninsula takes place four years after Train to Busan as the characters fight to escape the land that is in ruins due to an unprecedented disaster.