The WORST episodes of Zoo

Every episode of Zoo ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Zoo!

Zoo is a global thriller about a wave of violent animal attacks against humans sweeping the planet. James Wolk will play Jackson Oz, a young, renegade American zoologist who spends his days running safaris in the wilds of Africa when he begins noticing the strange behavior of the animals. As the assaults become more cunning, coordinated and ferocious, he is thrust into the race to unlock the mystery of the pandemic before there’s no place left for people to hide.

Last Updated: 11/10/2024Network: CBSStatus: Ended
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Sleuths
star
7.18
1371 votes

#1 - Sleuths

Season 1 - Episode 7 - Aired 8/11/2015

The team travels to Paris to search for a group of bears that were being studied for migration habits when their trackers mysteriously went offline. While investigating the strange occurrence, Chloe must work with and ultimately confront her ex-fiancé, a civil engineer, who is helping city officials find the missing bears. Meanwhile, with Jamie accused of murder, the team makes a daring plan to hack into the Reiden-Global mainframe, and Mitch makes a shocking discovery about the next evolutionary step of the animals.

Directors: Dean White
Watch Now:AmazonApple TV
The Barrier
star
7.23
928 votes

#2 - The Barrier

Season 3 - Episode 13 - Aired 9/21/2017

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

Directors: Michael Katleman
Watch Now:AmazonApple TV
First Blood
star
7.39
2025 votes

#3 - First Blood

Season 1 - Episode 1 - Aired 6/30/2015

Jackson Oz, an American ex-pat safari guide living in Africa, discovers a link between strange animal attacks on people occurring around the world and his late father's controversial theories about an impending threat to the human race. Meanwhile, journalist Jamie Campbell and veterinary pathologist Mitch Morgan team up to investigate similar abnormal animal behavior in Los Angeles.

Directors: Brad Anderson
Watch Now:AmazonApple TV
Emotional Contagion
star
7.39
1268 votes

#4 - Emotional Contagion

Season 1 - Episode 10 - Aired 9/1/2015

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.

Directors: Christine Moore
Writer: Jay Faerber
Watch Now:AmazonApple TV
Collision Point
star
7.40
1525 votes

#5 - Collision Point

Season 2 - Episode 3 - Aired 7/5/2016

After tragedy strikes their only ally within the government, the team is left on their own to stop a surge of animal-related attacks from destroying the city of Geneva, Switzerland. Also, new team member Dariela makes a shocking discovery about General Davies, head of the Noah Objective, and in the Canadian wilderness, Jamie witnesses the animals’ broadening effect on the environment and uncovers a troubling detail about Logan.

Watch Now:AmazonApple TV
Pack Mentality
star
7.41
1563 votes

#6 - Pack Mentality

Season 1 - Episode 4 - Aired 7/21/2015

Jackson, Abraham, Mitch, Jamie and Chloe are tasked by a top intelligence agent to find the cause of the strange animal behavior around the world. When the team travels to Mississippi to investigate the wolf attack on the prison, Mitch and Abraham break off to catch one of the wolves, and Chloe, Jackson and Jamie discover that death row inmate escapee Evan Lee Hartley might somehow be involved in the attack. Also, the team meets FBI Agent Ben Shafer, who may know more about the prison fire than he’s saying.

Directors: David Grossman
Writer: Bryan Oh
Watch Now:AmazonApple TV
Fight or Flight
star
7.41
1708 votes

#7 - Fight or Flight

Season 1 - Episode 2 - Aired 7/7/2015

After Jackson Oz rescues his best friend, Abraham Kenyatta, from a lion attack in Botswana, Abraham’s firsthand account of the attack reveals that the lions are no longer afraid of humans and might be killing for sport. Also, Jamie and Mitch run tests on a lion cub in the Los Angeles Zoo and uncover a link to a chemical made by a biotechnology company, and Chloe Tousignant returns to Paris where she must overcome her own trauma and focus on her work as a government intelligence analyst.

Directors: Michael Katleman
Watch Now:AmazonApple TV
The Cheese Stands Alone
star
7.42
1318 votes

#8 - The Cheese Stands Alone

Season 1 - Episode 8 - Aired 8/18/2015

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.

Directors: Eric Laneuville
Watch Now:AmazonApple TV
Stakes on a Plane
star
7.42
1075 votes

#9 - Stakes on a Plane

Season 3 - Episode 8 - Aired 8/17/2017

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.

Directors: Jet Wilkinson
Watch Now:AmazonApple TV
Welcome to the Terra Dome
star
7.43
1250 votes

#10 - Welcome to the Terra Dome

Season 3 - Episode 4 - Aired 7/20/2017

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

Directors: Greg Beeman
Watch Now:AmazonApple TV
Caraquet
star
7.44
934 votes

#11 - Caraquet

Season 2 - Episode 2 - Aired 6/28/2016

While Jamie tries to make her way to safety, an increasingly desperate Chloe tries to find a cure to the mutation now that one of her teammates is infected.

Directors: Michael Katleman
Watch Now:AmazonApple TV
The Black Forest
star
7.45
1025 votes

#12 - The Black Forest

Season 3 - Episode 9 - Aired 8/24/2017

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.

Directors: David Barrett
Watch Now:AmazonApple TV
Blame It on Leo
star
7.45
1482 votes

#13 - Blame It on Leo

Season 1 - Episode 5 - Aired 7/28/2015

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.

Writer: Jay Faerber
Watch Now:AmazonApple TV
Ten Years Gone
star
7.46
1321 votes

#14 - Ten Years Gone

Season 3 - Episode 3 - Aired 7/13/2017

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

Directors: Edward Ornelas
Watch Now:AmazonApple TV
Murmuration
star
7.47
1262 votes

#15 - Murmuration

Season 1 - Episode 9 - Aired 8/25/2015

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.

Directors: Michael Katleman
Writer: Bryan Oh
Watch Now:AmazonApple TV
Wham, Bam, Thank You Sam
star
7.47
1108 votes

#16 - Wham, Bam, Thank You Sam

Season 3 - Episode 7 - Aired 8/10/2017

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

Directors: Alex Gayner
Watch Now:AmazonApple TV
No Place Like Home
star
7.48
1507 votes

#17 - No Place Like Home

Season 3 - Episode 1 - Aired 6/29/2017

It has been 10 years since mankind was sterilized. Along the West Coast, a huge barrier has been built to prevent the penetration of hybrids into the north of America. In this area, Jackson Oz as Dylan Green is working with Tess as a friend trying to get as many people as possible into safe zones. Abraham is working on a drug that would reverse the effects of gas. Aba and Dariel visit Clementine, daughter Mitche. She managed to get her evidence that her father was alive and that she was in the Siberian Stasi Chamber. Jamie is trying to get all the members of the Shepherd Organization responsible for sterilizing humanity and expanding hybrids, which is why he is in conflict with detective Logan.

Directors: Michael Katleman
Watch Now:AmazonApple TV
The Walls of Jericho
star
7.49
1476 votes

#18 - The Walls of Jericho

Season 2 - Episode 4 - Aired 7/12/2016

In an effort to unravel a dark conspiracy within the Noah Objective, the team travels to Vancouver, where it must infiltrate a black-tie event in order to get close to General Davies and stave off an impending animal threat. Also, Jamie and Logan’s journey is interrupted when Logan’s past comes back to haunt them.

Directors: David Solomon
Watch Now:AmazonApple TV
Eats, Shoots and Leaves
star
7.49
1192 votes

#19 - Eats, Shoots and Leaves

Season 1 - Episode 11 - Aired 9/8/2015

When Jackson is injured after a run-in with the rebels in Zambia, the team rushes him to a hospital in Zimbabwe and finds it overrun by wild animals. While Jackson undergoes emergency surgery, Mitch and Jamie work to formulate a cure using the Mother Cell and leopard DNA. Victory is within reach until a shocking turn of events jeopardizes everything.

Directors: Zetna Fuentes
Watch Now:AmazonApple TV
Jamie's Got A Gun
star
7.50
1326 votes

#20 - Jamie's Got A Gun

Season 2 - Episode 7 - Aired 8/2/2016

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.

Directors: Lee Rose
Watch Now:AmazonApple TV
This Is What It Sounds Like
star
7.52
1430 votes

#21 - This Is What It Sounds Like

Season 1 - Episode 6 - Aired 8/4/2015

While searching for a solution to the bat problem in Rio de Janeiro, Mitch and Chloe are kidnapped by the local drug lord and Abraham must come to the rescue. Also, reeling from the car crash that allowed escaped death row inmate Evan Lee Hartley to steal the one piece of evidence they had against Reiden Global, the Mother Cell, Jamie, Jackson and Agent Shaffer team up to track him down and lands Jamie in trouble with the FBI.

Directors: David Solomon
Watch Now:AmazonApple TV
Zero Sum
star
7.52
1292 votes

#22 - Zero Sum

Season 2 - Episode 8 - Aired 8/9/2016

Jackson learns his mother is missing in Africa, but before he can look for her, he and the team must contend with a hostile force that has overtaken their plane. Also, Jamie learns a shocking secret about Abraham.

Directors: Anton Cropper
Watch Now:AmazonApple TV
The Moon and the Star
star
7.53
1450 votes

#23 - The Moon and the Star

Season 2 - Episode 5 - Aired 7/19/2016

Jamie and Logan arrive in Caraquet but are horrified to find it’s not the refuge they hope for. Also, after the team gets a lead on Jamie’s location, they eagerly head to Caraquet in the hopes of reuniting with her.

Directors: Norman Buckley
Watch Now:AmazonApple TV
The Silence of the Cicadas
star
7.53
1629 votes

#24 - The Silence of the Cicadas

Season 1 - Episode 3 - Aired 7/14/2015

Jackson Oz and Abraham Kenyatta fly to Japan to recover the rest of Oz’s father’s research involving animals. Also, Jamie convinces Mitch to accompany her on a trip to her hometown in Louisiana to show a senator their findings on the abnormal behavior of the zoo lions. In Paris, Chloe is the first to be recruited by a shadowy intelligence agent, Gaspard Alves (Henri Lubatti), who is looking for the cause of the strange animal behavior, and a death row inmate escapes from a Mississippi prison after a vicious wolf invasion sets the prison ablaze.

Directors: Chris Long
Watch Now:AmazonApple TV
Once Upon a Time in the Nest
star
7.53
1021 votes

#25 - Once Upon a Time in the Nest

Season 3 - Episode 10 - Aired 8/31/2017

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

Directors: Avi Youabian
Watch Now:AmazonApple TV