TV THIS WEEK: The Terror, Flash and Krypton season finales, new Westworld and more

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May 21, 2018, 12:24 PM EDT (Updated)

As the fall season continues to wrap up, this week brings finales for two DC Comics shows, plus some interesting new episodes well worth checking out. As for the weekend? We'll just assume everyone is watching Solo: A Star Wars Story.

The CW's Flash ends its fourth season with a final fight to save the world from Devoe, while SYFY's Krypton also brings its battle against Brainiac to an end. AMC's frightening horror series The Terror is also wrapping its first season.

The season-enders might take the spotlight, there's still plenty of new stuff to check out. The CW's Supergirl and iZombie are both new, along with more than a few A-list interviews on James Cameron's Story of Science Fiction. FX's Legion is new, SYFY's The Expanse is new, HBO has a new Westworld and Freeform has the season finale of Siren.

Check out our full rundown below and let us know what you'll be watching.


The Terror (AMC), Monday 9PM - "We Are Gone"

SEASON FINALE: The Season 1 finale: The expedition's epic journey reaches its climax as men find themselves in a final confrontation with the Inuit mythology they've trespassed into.


The Flash (The CW), Tuesday 8PM - "We Are the Flash"

SEASON FINALE: In the Season 4 finale, Team Flash gets help from a surprising ally in their battle against DeVoe.


Krypton (SYFY), Wednesday 10PM - "The Phantom Zone"

SEASON FINALE: Seg races to save his city from being overtaken as the bottling of Kandor begins.


Star Wars: Forces of Destiny (Disney), Friday 8:30PM - "Star Wars Forces of Destiny: Volume 4"

The showcase of the galaxy's greatest heroes continue with Ahsoka and Ezra, Rey and Finn, Luke and Leia, and Chewie and some Porgs.


Westworld (HBO), Sunday 9PM - "05-27-2018"

The latest episode of HBO's mind-bending sci-fi hit.


Supergirl (The CW), 8PM - "The Fanatical"

When Tanya, a disciple of Coville's, escapes from what's left of his cult, she gives Kara and James a journal that could hold the key to saving Sam.


iZombie (The CW), 9PM - "You've Got to Hide Your Liv Away"

When Liv consumes the brain of a vice detective who doesn't play by the rules, her newfound recklessness gets her into trouble.


The Terror (AMC), Monday 9PM - "We Are Gone"

See more in our "Highlights" section above.

Elementary (CBS), Monday 10PM - "Our Time is Up"

Watson considers making a major life change after reading her own therapy file while Holmes and she investigate the murder of her former psychologist.


James Cameron's Story of Science Fiction (AMC), Monday 10:15PM - "Dark Futures"

Steven Spielberg, Christopher Nolan, Robert Kirkman and others explore how humans will survive when the world goes to hell.


The Flash (The CW), Tuesday 8PM - "We Are the Flash"

See more in our "Highlights" section above.

The 100 (The CW), Tuesday 9PM - "Shifting Sands"

Octavia leads her people towards Shallow Valley against the advice of Clarke and Bellamy. Meanwhile, Kane and Abby adjust to a new set of challenges.


Legion (FX), Tuesday 10PM - "Chapter 16"

The path forward is revealed.


The Expanse (SYFY), Wednesday 9PM - "Delta-V"

All eyes turn to the edge of the solar system as a mysterious new presence emerges; Naomi recommits to her roots; Drummer butts heads with a seasoned new commander aboard the Behemoth; and a young Belter makes a name for himself.


Colony (USA), Wednesday 10PM - "Hospitium"

Will and Katie fear they might be in danger when the Resistance camp is put in lockdown. A risky plan makes Broussard question Amy's intentions.


Krypton (SYFY), Wednesday 10PM - "The Phantom Zone"

See more in our "Highlights" section above.

The Americans (FX), Wednesday 10PM - "Jennings, Elizabeth"

Elizabeth wrestles with competing loyalties, and Philip has an encounter that turns into much more than he had bargained for.


Siren (Freeform), Thursday 8PM - "Aftermath"

SEASON FINALE: In the Season 1 finale, the enchanting siren song takes hold of Ben and Decker. Meanwhile, Dale must answer for the escalating crime in Bristol Cove.


BattleBots (Discovery), Friday 8PM - "Everyone Wants to Be the Hotshot"

BattleBots legends Hypershock and Biteforce face off in an epic showdown, while up-and-comers try to prove they have what it takes to be crowned 2018 BattleBots World Champion.

DuckTales (Disney), Friday 8PM - "McMystery at McDuck McManor!"

When Scrooge unexpectedly disappears during his birthday party, Huey, Dewey and Louie find themselves hosting a mystery party where everyone is a suspect.


Star Wars: Forces of Destiny (Disney), Friday 8:30PM - "Star Wars Forces of Destiny: Volume 4"

See more in our "Highlights" section above.


It's a pretty slow weekend, but let's be honest, we're all probably out watching Deadpool 2 and Solo: A Star Wars Story this weekend anyway, right?

Ghost Adventures (Travel), Saturday 9PM - "Extra Pulses: Mackay Mansion"

In an enhanced episode, the Ghost Adventures crew returns to Virginia City, Nevada, to investigate two properties once owned by the legendary mining tycoon, John Mackay. During the intense lockdown, an unseen force pushes Jay down a flight of stairs.


Westworld (HBO), Sunday 9PM - "05-27-2018"

See more in our "Highlights" section above.