The Event

The CDC tries to identify the contagion and treat those infected as the biological threat intensifies; Simon asks Sophia to betray Thomas.

All Episodes - Season 1

Episode 1

I Haven't Told You Everything

Episode 2

To Keep Us Safe

Episode 3

Protect Them from the Truth

Episode 4

A Matter of Life and Death

Episode 5

Casualties of War

Episode 6

Loyalty

Episode 7

I Know Who You Are

Episode 8

For the Good of Our Country

Episode 9

Your World to Take

Episode 10

Everything Will Change

Episode 11

And Then There Were More

Episode 12

Inostranka

Episode 13

Turnabout

Episode 14

A Message Back

Episode 15

Face Off

Episode 16

You Bury Other Things Too

Episode 17

Cut Off the Head

Episode 18

Strain

Episode 19

Us or Them

Episode 20

One Will Live, One Will Die

Episode 21

The Beginning of the End

Episode 22

Arrival