Journalist Erika Check Hayden travels to Sierra Leone and sees Ebola up close and personal for the first time, and Richard Cardillo escapes his problems by joining a Catholic mission in Peru, where he becomes a community health organizer.

As a pediatrician in the 1980s, Ken Haller comes across a disturbing X-ray, and on her first day working in the White House under President Obama, microbiologist Jo Handelsman receives some bad news.

Data researcher Virginie Uhlmann struggles to send an important email, and after a panic attack, Shane Saunderson decides to rid his life of technology.

Stuck in the lab with buckets of jellyfish, Shreya Yadav must rethink why she's studying what she's studying in the first place, and underwater photographer Keith Ellenbogen comes face to face with an animal he wasn't expecting.