7.3/101,053 votes#1 - First Blood
Season 1 Episode 1 - Aired 6/30/2015
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: N/A
7.3/10826 votes#2 - Fight or Flight
Season 1 Episode 2 - Aired 7/7/2015
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
Writer: Jeff Pinkner, Scott Rosenberg
7.3/10743 votes#3 - The Silence of the Cicadas
Season 1 Episode 3 - Aired 7/14/2015
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
7.3/10703 votes#4 - Pack Mentality
Season 1 Episode 4 - Aired 7/21/2015
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
7.3/10660 votes#5 - 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.
Director: Steven A. Adelson
Writer: Jay Faerber
7.3/10617 votes#6 - This Is What It Sounds Like
Season 1 Episode 6 - Aired 8/4/2015
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
7.4/10603 votes#7 - Sleuths
Season 1 Episode 7 - Aired 8/11/2015
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
7.4/10606 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.
Director: Eric Laneuville
Writer: Jay Faerber, Scott Rosenberg
7.4/10586 votes#9 - 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.
Director: Michael Katleman
Writer: Bryan Oh
7.3/10580 votes#10 - 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.
Director: Christine Moore
Writer: Jay Faerber
7.6/10582 votes#11 - Eats, Shoots and Leaves
Season 1 Episode 11 - Aired 9/8/2015
Chloe is taken hostage by someone she knows. Jackson and the others are arrive at Zambia to find the leopard to test Mitch's theory of the animal mutation.
Director: Zetna Fuentes
Writer: Rebekah F. Smith
7.8/10593 votes#12 - Wild Things
Season 1 Episode 12 - Aired 9/8/2015
Chloe tries to bring light to the rising threat from the animals. Jackson is taken to a hospital and while they are there Mitch works to create a cure. However, there are many obstacles they must overcome.
Director: John Polson
Writer: Carla Kettner
7.6/10611 votes#13 - That Great Big Hill of Hope
Season 1 Episode 13 - Aired 9/15/2015
Jackson and the team make a final attempt to find a cure to the worldwide animal pandemic, but hit an obstacle that may be impenetrable.
Director: Michael Katleman
Writer: Jeff Pinkner, Scott Rosenberg
The Best Episodes of Zoo Season 1
Every episode of Zoo Season 1 ranked from best to worst. Discover the Best Episodes of Zoo Season 1!
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...
Genre:Drama
Network:CBS
Season 1 Ratings Summary
"First Blood" is the best rated episode of "Zoo" season 1. It scored 7.3/10 based on 1053 votes. Directed by Brad Anderson and written by N/A, it aired on 6/30/2015. This episode is rated 0.0 points higher than the second-best, "Fight or Flight".