Warning: This episode contains spoilers for Episode Two of the First Season of World On Fire.

From a summer romance in beautiful prewar Warsaw to a rebel resistance in the rubble of her struggling city at war, young Polish waitress Kasia Tomaszeski has seen a life's worth of trauma in a few brief episodes. Actor Zofia Wichłacz was prepared for the dark role, but warns in a new interview — there's still more pain to come for Kasia.