Russell learns lab animals may have spread a deadly virus.
Subtitles: English
Season 1
S01:E01 - Pilot
A park ranger fights for his loved ones and humankind.
S01:E02 - Lights Out
Russell discovers an officer with a mysterious wound.
S01:E03 - Watershed
Russell must save Jesse. Larkin suspects a cover-up.
S01:E04 - Alpha Male
Russell learns lab animals may have spread a deadly virus.
S01:E05 - Unnatural Selection
Russell's coworker is killed. Larkin becomes suspicious.
S01:E06 - The Hunt
Russell fishes to catch a being. Derek's interest switches.
S01:E07 - Fish Story
An injured Larkin encounters a suspicious man.
S01:E08 - The Cradle
A baby is left at Russell's station. Mariel makes a find.
S01:E09 - The Dredge
Larkin uncovers Russell's past. Mariel pleads with Underlay.
S01:E10 - Origin of Species
Dave is abducted. Sirk gets a first look at a being.
S01:E11 - Us or Them
Russell finally confronts Mariel. Jesse meets a girl.
S01:E12 - Power
Underlay takes the children on an unscheduled vacation.
S01:E13 - Redemption
Underlay is shot by an intruder. Russell must stop Larkin.
S01:E14 - All God's Creatures
Russell, Larkin and Dave identify a creature.
S01:E15 - The Nest
Kira searches for the truth. Russell helps Mariel.
S01:E16 - The Fittest
Russell and Underlay stumble upon suspicious workers.
S01:E17 - The Key
Christina forces Mariel to perform an ultrasound.
S01:E18 - Re-Evolution
Russell and Dave discover an island housing special hybrids.
S01:E19 - The Son Also Rises
Russell's job may be in jeopardy. The hybrids sense a storm.
S01:E20 - Run and Gun
Russell and Underlay try to uncover hidden hybrids.
S01:E21
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S01:E22
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