Scorpion

Season 4

22 episodes 4 seasons

Eccentric genius Walter O'Brien and his team of brilliant misfits continue to be the last line of defense against the complex, high-tech threats of the modern age as they solve extreme, life-threatening cases, including a global extinction event, a nuclear missile launch on U.S. soil, and even the perils of geniuses trying to start a family.

Release Date

Premiered

Scorpion Season 4 released on September 25, 2017.

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S04E01 Aired September 25, 2017

Extinction

Team Scorpion must work with their old nemesis Mark Collins in order to prevent the extinction of mankind. Also, Walter and Paige awkwardly navigate their new relationship.

S04E02 Aired October 02, 2017

More Extinction

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

S04E03 Aired October 09, 2017

Grow a Deer, A Female Deer

When poachers almost kill a pregnant endangered deer, Team Scorpion recreates the animal’s womb to try to save it and its baby’s life. Also, Happy and Toby discuss the future of their family.

S04E04 Aired October 16, 2017

Nuke Kids on the Block

While decommissioning an old nuclear missile, a simple accident causes Team Scorpion to endure exposure to toxic vapor while trying to prevent the nuke from detonating. Also, Paige confronts Happy about constantly tagging along with her and Walter.

S04E05 Aired October 23, 2017

Sci Hard

While attending a tech convention, Team Scorpion is taken hostage by a group attempting a virtual heist.

S04E06 Aired October 30, 2017

Queen Scary

At Halloween, Team Scorpion takes on a case 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. Also, Walter considers taking note of Paige’s interests to benefit their relationship.

S04E07 Aired November 06, 2017

Go With the Flo(rence)

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.

S04E08 Aired November 13, 2017

Faire Is Foul

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 historical inaccuracies at the festival.

S04E09 Aired November 20, 2017

It's Raining Men (Of War)

On Thanksgiving, Team Scorpion’s new neighbor 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. Toby works with Cabe to uncover the details of his father’s death that he has suppressed since he was a boy.

S04E10 Aired November 27, 2017

Crime Every Mountain

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.

S04E11 Aired December 11, 2017

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

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.

S04E12 Aired December 18, 2017

A Christmas Car-Roll

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.

S04E13 Aired January 15, 2018

The Bunker Games

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.

S04E14 Aired January 22, 2018

Lighthouse of the Rising Sun

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.

S04E15 Aired January 29, 2018

Wave Goodbye

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.

S04E16 Aired February 05, 2018

Nerd, Wind and Fire

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. Toby and Happy wait for news on their fertility results. Sylvester realizes that he may have feelings for Florence.

S04E17 Aired February 26, 2018

Dumbster Fire

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. Florence and Sylvester grow closer when she helps him with a special project.

S04E18 Aired March 05, 2018

Dork Day Afternoon

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

S04E19 Aired March 19, 2018

Gator Done

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.

S04E20 Aired March 26, 2018

Foul Balls

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.

S04E21 Aired April 09, 2018

Kenny and the Jet

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.

S04E22 Aired April 16, 2018

A Lie in the Sand

Season 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.