Part 4/9:
Amidst the turmoil, Marek, the island's doctor, struggles to develop a vaccine while being hindered by dwindling resources and ethics regarding human experimentation. Tension rises when Marek secretly treats a sick mainlander, Peter, using him as a lab rat under the pretense of finding a cure that could save his own son, Linus. This act leads to a moral quagmire for Marek as he grapples with the decrepit state of his community and the lengths he must go to save his family.