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.

Rashawn Ray’s trajectory as a sociologist is altered by a police shooting, and ecologist Marcelo Ardón Sayao turns to both science and religion in a difficult time.

Science writer Ed Yong comes face to face with a wild rhino in South Africa, and scientist Gifford Wong must resuscitate a seal in Antarctica.

Pediatrician Ken Haller comes across a disturbing X-ray, and neuroscientist Maureen Boyle's relationship with her sister is complicated when she begins working on drug policy.