Want to watch better-quality PBS Video? Sign in to access higher-quality streaming!

By signing in, you are authorizing PBS to share your email address with your local PBS station to send you periodic communications about station events, services and support. Any other uses of your information by PBS are governed by PBS’s Privacy Policy.

Closed Captioning Settings


Captions look like this

Captions size

  • 15

Captions font family

Edge style

Captions color

Background color

Window color

Text Opacity

  • 100%

Background Opacity

  • 100%

Window Opacity

  • 0%
  • Save Settings
  • Reset



  • Aired: 04/22/2011
  • 16:04
  • Expires: 03/02/2021
  • Rating: NR
Roxanne Green catches a shuttle to her first job of the day: a live-body contagion for the government, used to immunize urban populations. Jesse Cho, an anti-contagion activist, is flirting with co-worker Nicole when his office is breeched by Roxanne's team. Led by Roxanne, the contagions try to contain the workers inside the building, chasing them down in an attempt to mass-inoculate.
Embed Options
Close ×
Exposure image
Watch the full episode!
Please copy this text to your clipboard.
Problems Playing Video ?


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Downton Abbey Collection

Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.


helps all of us explore new worlds and ideas. Give Now

Sponsored Links