Part 4/10:
The plot thickens as Dr. Ellen, a dedicated veterinarian and her interns—students on an excursion—arrive at the zoo, blissfully unaware of the danger roiling beneath the surface. With a mix of youthful enthusiasm and a strong familial connection to the zoo, Ellen is determined to educate the trainees on animal care. Among them is Amber, a troubled individual facing personal demons alongside the looming threat of contagion. As the interns explore the zoo, their fragile safety is shattered with each new revelation of the outbreak.