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Scorpion Season 4 Episodes

Season 4 Episode Guide

22 Episodes 2017 - 2018

Season 4 of this drama series returns with Walter O'Brien (Elyes Gabel) and his genius gang of misfits. Together, the group must deal with high-tech cases, trying to handle situations that range from stopping a poacher cabal to handling global catastrophes. Meanwhile, the Scorpion team must also face personal challenges, like the start of a new relationship and dealing with the zany world of local politics.

Episode 1


Mon, Sep 25, 2017 60 mins

Season 4 begins with Team Scorpion being forced to work with their old nemesis Mark Collins in order to prevent the extinction of mankind. Meanwhile, Walter and Paige awkwardly navigate their new relationship.

Where to Watch
Scorpion, Season 4 Episode 1 image

Episode 2

More Extinction

Mon, Oct 2, 2017 59 mins

Team Scorpion continues to work with their nemesis, Mark Collins, to prevent an extinction event that could end humanity. Meanwhile, Cabe's last-minute decision on the case leads to the possible end of his career.

Where to Watch
Scorpion, Season 4 Episode 2 image

Episode 3

Grow a Deer, a Female Deer

Mon, Oct 9, 2017 60 mins

Poachers almost kill a pregnant endangered deer, so Team Scorpion recreates the animal's womb to save it and its baby's life. Meanwhile, Happy and Toby discuss the future of their family.

Where to Watch
Scorpion, Season 4 Episode 3 image

Episode 4

Nuke Kids on the Block

Mon, Oct 16, 2017 60 mins

A simple accident while decommissioning an old nuclear missile causes Team Scorpion to be exposed to toxic vapor. But they must endure it to prevent the nuke from detonating. Meanwhile, Paige confronts Happy about constantly tagging along with her and Walter.

Where to Watch
Scorpion, Season 4 Episode 4 image

Episode 5

Sci Hard

Mon, Oct 23, 2017 60 mins

Team Scorpion is taken hostage by a group attempting a virtual heist at a tech convention and must outwit their captors utilizing the cutting edge technology on display.

Where to Watch
Scorpion, Season 4 Episode 5 image

Episode 6

Queen Scary

Mon, Oct 30, 2017 60 mins

Team Scorpion takes a case on Halloween to prove the existence of ghosts on the Queen Mary, but find an all-too-real disaster when they locate a "ghost ship" on a deadly collision course. Meanwhile, Walter considers taking note of Paige's interests to benefit their relationship.

Where to Watch
Scorpion, Season 4 Episode 6 image

Episode 7

Go With the Flo(rence)

Mon, Nov 6, 2017 60 mins

While tracking a device that can prevent a nuclear meltdown through the Los Angeles sewers, Walter learns the nuances of listening and not offering advice to Paige. Also, Team Scorpion meets Florence, their new neighbor at the garage, after she sends a mix of smelly chemicals through their shared ventilation as a warning to keep the noise down,

Where to Watch
Scorpion, Season 4 Episode 7 image

Episode 8

Faire Is Foul

Mon, Nov 13, 2017 60 mins

For Sylvester's birthday, Team Scorpion visits a renaissance festival, but the revelry is cut short when a group tries to rob a nearby police evidence locker. Also, Paige grows weary of Walter's play-by-play of all the festival's historical inaccuracies.

Where to Watch
Scorpion, Season 4 Episode 8 image

Episode 9

It's Raining Men (of War)

Mon, Nov 20, 2017 50 mins

On Thanksgiving, Team Scorpion's new neighbor, Florence, joins them at sea on a mission to destroy a floating island of trash, but her flawed contribution leaves her, Walter and Happy stranded on the quickly dissolving island. Also, Toby works with Cabe to uncover the details of his father's death that he has suppressed since he was a boy.

Where to Watch
Scorpion, Season 4 Episode 9 image

Episode 10

Crime Every Mountain

Mon, Nov 27, 2017 50 mins

As Cabe's trial looms over Team Scorpion, a simple case goes sideways when they help a father and his daughter whose plane crashes nearby. Also, Paige helps Walter navigate his feelings about Cabe's possible future in prison.

Where to Watch
Scorpion, Season 4 Episode 10 image

Episode 11

Who Let the Dog Out ('Cause Now It's Stuck in a Cistern)

Mon, Dec 8, 2014 60 mins

As Team Scorpion anxiously awaits the verdict of Cabe's trial which could send him to prison, they focus their nervous energy on trying to save a dog stuck in a cistern.

Where to Watch
Scorpion, Season 4 Episode 11 image

Episode 12

A Christmas Car-Roll

Mon, Dec 18, 2017 60 mins

On Christmas Eve, when Walter chooses work over spending quality time with his friends, he falls down the stairs and hits his head, and as he lays unconscious, he enters a dream world where Team Scorpion never existed.

Where to Watch
Scorpion, Season 4 Episode 12 image

Episode 13

The Bunker Games

Mon, Jan 15, 2018 60 mins

Team Scorpion must work with Toby's nemesis, Quincy Berkstead, and his wife, Amy, Toby's ex-fiancée, when they are locked inside an artificially intelligent doomsday bunker that aims to kill them. Also, Walter is distracted by his recent dream where he is married to Florence, not Paige.

Where to Watch
Scorpion, Season 4 Episode 13 image

Episode 14

Lighthouse of the Rising Sun

Mon, Jan 22, 2018 60 mins

A solar storm knocks out power in Los Angeles, and Team Scorpion must help a teen pilot and his girlfriend who are lost over the Pacific without navigation or radio contact. Also, during the crisis, Walter must look after a group of Ralph's classmates, and Cabe tries to tell Allie finally that he loves her

Where to Watch
Scorpion, Season 4 Episode 14 image

Episode 15

Wave Goodbye

Mon, Jan 29, 2018 60 mins

Team Scorpion must prevent an incoming tsunami from hitting a vulnerable nuclear power facility, and Toby secretly helps his ex-fiancée retrieve her stolen identity.

Where to Watch
Scorpion, Season 4 Episode 15 image

Episode 16

Nerd, Wind and Fire

Mon, Feb 5, 2018 60 mins

On Valentine's Day, Team Scorpion must set aside their romantic plans to help a doctor and pilot trapped inside a helicopter that crashed atop a skyscraper. Also, Toby and Happy wait for news on their fertility results, and Sylvester realizes that he may have feelings for Florence.

Where to Watch
Scorpion, Season 4 Episode 16 image

Episode 17

Dumbster Fire

Mon, Feb 23, 2015 60 mins

The geniuses of Team Scorpion turn into knuckleheads and Paige must simplify the science for them, when their mental faculties are impaired during a job to prevent the creation of a black hole. Also, Florence and Sylvester grow closer when she helps him with a special project.

Where to Watch
Scorpion, Season 4 Episode 17 image

Episode 18

Dork Day Afternoon

Mon, Mar 9, 2015 60 mins

Team Scorpion inadvertently crashes a bank robbery in progress and is taken hostage. Also, Sylvester's feelings for Florence grow.

Where to Watch
Scorpion, Season 4 Episode 18 image

Episode 19

Gator Done

Mon, Mar 19, 2018 60 mins

Team Scorpion heads to the bayou to track down a cagey alligator in order to stop a deadly mosquito-borne virus, and Paige teaches Walter the concept of the "white lie." Also, Walter hits Cabe with a tranquilizer gun and Toby must save his life, and Sylvester and Ralph help Patty when the mean girls at her school force her to get a dreaded tardy slip.

Where to Watch
Scorpion, Season 4 Episode 19 image

Episode 20

Foul Balls

Mon, Mar 26, 2018 60 mins

Team Scorpion must use their high IQs to win a softball game when the homeland director challenges, with all of their future government contracts on the line. Also, Walter's secret night out with Florence puts Toby and Happy on edge.

Where to Watch
Scorpion, Season 4 Episode 20 image

Episode 21

Kenny and the Jet

Mon, Apr 9, 2018 60 mins

Paige's maternal side goes into high gear when Team Scorpion must save an unconscious, hypothermic boy stuck in the wheel well of their airborne airplane. Also, Walter's white lie to Paige starts to take a toll on him, and Paige realizes something's up.

Where to Watch
Scorpion, Season 4 Episode 21 image

Episode 22

A Lie in the Sand

Mon, Apr 16, 2018 60 mins

In the Season 4 finale, Team Scorpion heads to Northeast Africa where they must carefully navigate a minefield in order to save the lives of local villagers. Also, Paige and Walter's relationship takes a shocking turn, and Toby and Happy make an important decision.

Where to Watch
Scorpion, Season 4 Episode 22 image