It’s a few years in the future, and the world enters the post-antibiotic era. Minor infections are life- threatening. Surgeries fail more often than they succeed. Hospitals are now dangerous places to work. At Toronto’s Mount Sinai Hospital, Dr Kate Langley leads a team of specialized physicians known as “Vectors”, trained to deal with the complexities of bacteria-resistant treatment. As Kate leads the fight against an enemy one micrometer in size, she wrestles with her own internal, outsized demons.