Neuroscientist Devon Collins encounters racism in academia, and OB-GYN Veronica Ades struggles to save a pregnant woman's life in South Sudan.

An unfortunate diagnosis sabotages Lindzi Wessel's new relationship, and marine biologist Skylar Bayer and first mate Thom Young fall in love aboard a boat.

Biologist Nadia Singh doesn’t want children, but her husband issues an ultimatum, and Kinari Webb’s philosophy as a scientist is shaped by her experience of the Berlin Wall.

As a schoolteacher, Jeff Braden gets a strange phone call from a renowned chimpanzee expert, and biologist Latasha Wright must confront her fear of open water when invited to visit a coral reef.