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The Worst Episodes of Zoo

Every episode of Zoo ranked from worst to best. Explore the Worst Episodes of Zoo!

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Set amidst a wave of violent animal attacks sweeping across the planet, a young renegade scientist is thrust into a race to unlock the mystery behind this pandemic before time runs out for animals and

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Episode Rankings

  1. #1 Worst Episode
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    Zoo Season 3 Episode 13 - The Barrier
    5.9/10(422 votes)

    S3:E13

    The team races to stop the hybrids from breaching the barrier wall by shutting down the last beacon that draws them in.

    Director:Michael Katleman
    Writers:Bryan Oh, Nick Parker

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  2. Zoo Season 3 Episode 12 - West Side Story
    6.7/10(333 votes)

    S3:E12

    After the team’s plane suffers a catastrophic accident in the hybrid zone, Dariela and Tessa set out on a rescue mission to save them.

    Director:Gary Fleder
    Writers:Gregory Weidman, Geoff Tock

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  3. Zoo Season 3 Episode 6 - Oz Is Oz
    6.9/10(331 votes)

    S3:E6

    Mitch seeks to rescue Clementine from her captors, and a glimpse into Jackson’s sister Abigail’s past reveals the origins of the hybrids.

    Director:Michael Katleman
    Writer:Matt Pitts

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  4. Zoo Season 3 Episode 7 - Wham, Bam, Thank You Sam
    6.9/10(322 votes)

    S3:E7

    The team sets out on a rescue mission for Abe and Dariela’s son, Isaac. Then, in search of information on a new hybrid, Mitch and Jamie travel to California, where they cross paths with a familiar face from their past.

    Director:Alexander H. Gayner
    Writers:Jay Faerber, Shintaro Shimosawa

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  5. Zoo Season 3 Episode 8 - Stakes on a Plane
    6.9/10(322 votes)

    S3:E8

    Abigail holds Jackson prisoner in order to extract information from him that is critical to her secret master plan, and the team faces a mid-air crisis when their plane experiences an electrical malfunction

    Director:Jet Wilkinson
    Writers:Gregory Weidman, Geoff Tock

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  6. Zoo Season 3 Episode 9 - The Black Forest
    6.9/10(315 votes)

    S3:E9

    After Mitch’s alter ego, Mr. Duncan, attacks the team’s plane then flees, Jamie, Abe and Max set out to find him and help.

    Director:David Barrett
    Writers:Bryan Oh, Nick Parker

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  7. Zoo Season 3 Episode 10 - Once Upon a Time in the Nest
    6.9/10(315 votes)

    S3:E10

    After Jackson attacks Abigail, the team rushes to save her as her life hangs in the balance.

    Director:Avi Youabian
    Writers:Jay Faerber, Shintaro Shimosawa

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  8. Zoo Season 3 Episode 1 - No Place Like Home
    7.0/10(465 votes)

    S3:E1

    Ten years after the animals were cured but at the cost of sterilizing the human population, a new threat rises in the form of “the hybrids,” an army of unstoppable lab-made creatures focused on destroying mankind.

    Director:Michael Katleman
    Writers:Melissa Glenn, Nicole Phillips

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  9. Zoo Season 3 Episode 3 - Ten Years Gone
    7.0/10(353 votes)

    S3:E3

    Abraham and Dariela consider making a deal with Reiden Global for personal reasons, and Jamie and Clementine perform a risky surgery on Mitch.

    Director:Edward Ornelas
    Writers:Jay Faerber, Shintaro Shimosawa

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  10. Zoo Season 3 Episode 4 - Welcome to the Terra Dome
    7.0/10(344 votes)

    S3:E4

    Abraham and Dariela reunite with the team as they try and stop the hybrids from taking over New York City.

    Director:Greg Beeman
    Writers:Gregory Weidman, Geoff Tock

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  11. Zoo Season 3 Episode 5 - Drop It Like It’s Hot
    7.0/10(336 votes)

    S3:E5

    While Jamie’s under arrest, she manages to manipulate Mitch and Logan into helping her hunt shepherds, members of a secretive group responsible for sterilizing humans

    Director:Norman Buckley
    Writers:Melissa Glenn, Nicole Phillips

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  12. Zoo Season 3 Episode 11 - Cradles and Graves
    7.0/10(320 votes)

    S3:E11

    As the team is trapped inside the plane by toxic spores surrounding them, complications arise during the delivery of Clementine’s baby.

    Director:Jennifer Lynch
    Writers:Melissa Glenn, Nicole Phillips

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  13. Zoo Season 3 Episode 2 - Diaspora
    7.1/10(381 votes)

    S3:E2

    Jackson and Logan discover a link between the hybrid attacks that occur in Portland and New York; Mitch is interrogated by a woman claiming to be his daughter, Clementine; and a new development in Abraham’s research into the sterility crisis endangers his family.

    Director:Michael Katleman
    Writers:Bryan Oh, Nick Parker

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  14. Zoo Season 1 Episode 1 - First Blood
    7.3/10(1093 votes)

    S1:E1

    In Botswana, guides Jackson Oz and Abraham Kenyatta come across a mysterious series of lion attacks. In LA, two lions escape a zoo and go on a rampage, and investigative reporter Jamie Campbell believes that it's tied to pesticide infested food sold by Reiden Global.

    Director:Brad Anderson
    Writer:Unknown

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  15. Zoo Season 1 Episode 2 - Fight or Flight
    7.3/10(849 votes)

    S1:E2

    Jackson discovers that Abraham is alive and stages a daring rescue to bring his friend home safely. Meanwhile, Jamie suspects that Reiden Global's pesticide is responsible for the lion attacks and convinces Mitch to help her. In Paris, a mysterious man approaches Chloe and asks her to accompany him.

    Director:Michael Katleman
    Writers:Scott Rosenberg, Jeff Pinkner

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  16. Zoo Season 1 Episode 3 - The Silence of the Cicadas
    7.3/10(768 votes)

    S1:E3

    Jackson and Abraham travel to Robert's isolated lab to recover his research. Meanwhile, Jamie convinces Mitch to go to New Orleans with her to approach a sympathetic senator, and Gaspald convinces Chloe to join forces with him.

    Director:Chris Long
    Writer:Denitria Harris-Lawrence

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  17. Zoo Season 1 Episode 6 - This Is What It Sounds Like
    7.3/10(641 votes)

    S1:E6

    Abraham works to save Chloe and Mitch from a drug lord; Jackson and Jamie continue to work with Agent Shaffer in search of Evan Lee Hartley and the Mother Cell after Leo is killed in the crash.

    Director:David Solomon
    Writer:Carla Kettner

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  18. Zoo Season 1 Episode 10 - Emotional Contagion
    7.3/10(602 votes)

    S1:E10

    On the run as fugitives, the team flies to Zambia to gather leopard DNA in order to manufacture a cure for the abnormal behavior that's affecting animals worldwide. When it’s time to leave, they need to reach out to animal rights activist Ray Endicott to get safe passage out of the country. Also, Chloe makes the ultimate sacrifice to avoid further bloodshed.

    Director:Christine Moore
    Writer:Jay Faerber

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  19. Zoo Season 2 Episode 7 - Jamie's Got a Gun
    7.3/10(424 votes)

    S2:E7

    Mitch digs into Jackson’s past to get the answers they need to make the cure. Also, the rest of the team hunts for evidence related to the triple helix inside a quaint English town.

    Director:Lee Rose
    Writers:Melissa Glenn, Bek Smith

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  20. Zoo Season 1 Episode 4 - Pack Mentality
    7.4/10(728 votes)

    S1:E4

    Jackson, Jamie, and Chloe travel to Mississippi to investigate the prison fire, while Abraham and Mitch go north to trap and study wolves.

    Director:David Grossman
    Writer:Bryan Oh

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  21. Zoo Season 1 Episode 5 - Blame It on Leo
    7.4/10(685 votes)

    S1:E5

    Jackson, Jamie and Agent Shaffer search for a chemist in Alabama who has evidence of Reiden Global's role in the growing animal problem. Meanwhile, Chloe, Mitch and Abraham fly to Rio de Janeiro to delay the local government's plan for a massive bat extermination and come up against a ruthless drug lord.

    Director:Steven A. Adelson
    Writer:Jay Faerber

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  22. Zoo Season 1 Episode 7 - Sleuths
    7.4/10(626 votes)

    S1:E7

    The team heads to Paris to investigate a group of bears whose trackers have gone offline. Mitch makes a shocking new discovery about the Mother Cell. Chloe runs into her ex-fiancé.

    Director:Dean White
    Writer:Denitria Harris-Lawrence

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  23. Zoo Season 1 Episode 8 - The Cheese Stands Alone
    7.4/10(627 votes)

    S1:E8

    The team discovers a terrifying rat infestation when a cargo ship carrying the bloodthirsty rodents washes up off the coast of Massachusetts. Also, unbeknownst to the rest of the team, Mitch reconnects with his terminally ill daughter in Boston as he prepares to make a trade with Reiden-Global to save her life.

    Director:Eric Laneuville
    Writers:Jay Faerber, Scott Rosenberg

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  24. Zoo Season 1 Episode 9 - Murmuration
    7.4/10(610 votes)

    S1:E9

    Jamie contacts a fellow journalist in an attempt to expose the truth about Reiden’s involvement in the global animal problem. After realizing Delavenne works for Reiden, Mitch escapes with both the Mother Cell and his daughter’s medication. However, on their way to deliver the medication, Mitch and Abraham come face-to-face with a terrifying army of birds.

    Director:Michael Katleman
    Writer:Bryan Oh

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  25. Zoo Season 2 Episode 3 - Collision Point
    7.4/10(475 votes)

    S2:E3

    A tragedy strikes the team's only ally within the government, leaving Jackson and the team on their own to stop a surge of animal-related attacks from destroying the city of Geneva, Switzerland. Meanwhile, Dariela discovers something shocking about General Davies; and in the Canadian wilderness, Jamie comes across a troubling detail about Logan.

    Director:Steven A. Adelson
    Writers:Jay Faerber, Bek Smith

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Worst Episodes Summary

"The Barrier" is the worst rated episode of "Zoo". It scored 5.9/10 based on 422 votes. Directed by Michael Katleman and written by Bryan Oh, Nick Parker, it aired on 9/21/2017. This episode scored 0.8 points lower than the second lowest rated, "West Side Story".