A gifted paleobotanist and rising star in the scientific community, Dr Yvette Coradi spends most of her time in a lab where she replicates ancient climates and synthesizes extinct plant life for study and use in the development of new medicines. Her skills bring her to the attention of a time traveling expedition team whose leaders invite her to take part in the latest mission: a backward jump millions of years from the world Yvette knows to gather ingredients for a radical new treatment.

Along with time travel veterans, doctors, and pharmaceutical technicians, she sets out to shape the future of wellness. But as tensions rise and motivations come into question, she learns that work done outside of the lab isn't always clean.