TV THIS WEEK: James Cameron takes on sci-fi, Elementary and Colony return, an Arrow shocker and more

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Apr 30, 2018, 10:00 AM EDT

As we head into the summer season, the schedule is packed with some interesting premieres that should help fill the gap as mainline shows take a break for the year — with one of the most interesting being a deep dive into James Cameron's world.

AMC is set to premiere James Cameron's Story of Science Fiction, which finds the legendary filmmaker looking at the state of the genre and how it connects to the real world around us. On USA, the alien occupation drama Colony is back for its third season, while CBS is set to debut a new season of its Sherlock Holmes adaptation Elementary. Fox is also dropping the season (series?) finale of the excellent Last Man on Earth.

Beyond that, The CW's remaining super-shows are all new as they head toward season finales (Arrow looks to be the highlight this week, led by a shocking character return), FX has a new Legion, AMC has a new Fear the Walking Dead, and HBO has a new Westworld.

At SYFY, the network is dropping new episodes of a few heavy hitters, with both Krypton and The Expanse offering up fresh hours on Wednesday.

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


Elementary (CBS), Monday 10PM - "An Infinite Capacity for Taking Pains"

SEASON PREMIERE: The Season 6 premiere: As Holmes confronts a medical diagnosis that threatens both his career and sobriety, he meets Michael, a man who credits Sherlock for helping him conquer his own addiction. Also, Holmes and Watson are hired by a reformed party girl heiress to find her missing partner in a years-old sex tape that has just leaked online.


James Cameron's Story of Science Fiction (AMC), Monday 10PM - "Aliens"

SERIES PREMIERE: From its earliest days, science fiction has asked whether we're alone in the universe. Included: What can aliens teach humans about themselves? The series premiere.


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

SEASON PREMIERE: Six months after escaping Los Angeles, the Bowmans and Snyder enjoy a simple life in the mountains—until a sudden arrival changes everything. The Season 3 premiere.


Arrow (The CW), Thursday 9PM - "Docket No. 11-19-41-73"

The pressure mounts for Oliver, who begins to wonder if he will lose everything in his battle to save Star City. A familiar face returns.


Westworld (HBO), Sunday 10PM - "Virtue Fortuna"

Beauty in individuals; the fight for survival.


Lucifer (Fox), Monday 8PM - "All Hands on Decker"

When Chloe takes some time off, Lucifer is forced to work with Dan on a murder case involving a dog show. Meanwhile, Charlotte and Maze have differing ideas for Chloe's party and, after a wild night, Chloe rethinks a life-changing decision.


Supergirl (The CW), Monday 8PM - "Of Two Minds"

Supergirl and Imra have different ideas on how to stop the third Worldkiller, Pestilence. However, when both Alex and Winn are seriously injured by Pestilence, Supergirl and Imra team up to stop the destruction.


The Terror (AMC), Monday 9PM - "Horrible From Supper"

As the men begin their long march south for rescue, a series of shocking events underscores how vulnerable and exposed their situation has become.


iZombie (The CW), Monday 9PM - "Mac-Liv-Moore"

There's a zombie serial killer on the loose, and new Seattle is on lockdown. Liv is trapped in the morgue on white rapper brain and Clive and Ravi are playing Dungeons & Dragons. Meanwhile, Blaine concocts his most sinister plan to date. Lastly, Major is on the hunt for the killer.


Elementary (CBS), Monday 10PM - "An Infinite Capacity for Taking Pains"

See more in our "Highlights" section above.

The Crossing (ABC), Monday 10PM - "Ten Years Gone"

Flashbacks reveal a haunting connection between Marshall and the early migration. Meanwhile, Jude investigates a mysterious disappearance, and Sophie risks her life and career to help Reece save her daughter.


James Cameron's Story of Science Fiction (AMC), Monday 10PM - "Aliens"

See more in our "Highlights" section above.

Final Space (TBS), Monday 10:30PM - "Chapter Nine"

Gary and Quinn go back to Earth to find an anti-gravitational bomb that can close the breach in space. Gary and Quinn decide to turn this life-threatening adventure into their first date.


Shadowhunters (Freeform), Tuesday 8PM - "Salt in the Wound"

With the Owl's identity revealed, Alec, Isabelle, and Clary head to Alicante to try and find a way to stop him. Luke and Simon team up to track Lilith's latest possible victim. Maia reflects on her past.


The Flash (The CW), Tuesday 8PM - "Therefore She Is"

Barry and Team Flash team up with Gypsy to try to thwart Thinker's plan. Meanwhile, Cisco and Gypsy have a heart-to-heart talk about their relationship.


The 100 (The CW), Tuesday 9PM - "Red Queen"

Octavia is forced to take guidance from an unlikely ally when the future of the bunker and all those inside it is jeopardized.


Legion (FX), Tuesday 10PM - "Chapter 13"

An uneasy reunion leads to a shocking truth.


Riverdale (The CW), Wednesday 8PM - "Chapter Thirty-Three: Shadow of a Doubt"

As the town's mayoral race between Fred and Hermione heats up, Hiram sets his sights on a new ally—Sheriff Minetta. Betty turns to Cheryl for help when she has a suspicion about the Black Hood. Meanwhile, the reveal of a dark secret forces Archie and Jughead to try and ease tensions between the Bulldogs and Serpents. Finally, on the eve of the mayoral debate, a mysterious message leaves everyone on edge.


The Expanse (SYFY), Wednesday 9PM - "Reload"

The Rocinante tends to wounded Martian soldiers in exchange for supplies; and Avasarala struggles with how to disseminate a key piece of evidence despite being in hiding.


The Originals (The CW), Wednesday 9PM - "Ne Me Quitte Pas"

In the immediate aftermath of having his memory erased by Marcel, Elijah awakens to find himself in the middle of nowhere and without a clue as to who he is. Unable to control his instinctive vampire ways, Elijah encounters Antoinette, a beautiful and free-spirited vampire, who helps him navigate his new life. However, a run-in with Klaus threatens to destroy the peace he's finally found.


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

See more in our "Highlights" section above.

Krypton (SYFY), Wednesday 10PM - "Transformation"

Daron punishes the conspirators after a failed coup; and Lyta and Dev go in search of Jayna.


The Americans (FX), Wednesday 10PM - "Rififi"

A sudden assignment pulls Elizabeth away from her family at a crucial moment. Meanwhile, at the FBI, a major development leads Aderholt to approach Stan about an urgent investigation.


Gotham (Fox), Thursday 8PM - "A Dark Knight: That Old Corpse"

Chaos erupts at the GCPD, sending Gordon on a wild goose chase for the culprit behind the mass takeover. Meanwhile, a friend of Bruce's becomes paranoid, resulting in rash and destructive behavior.


Siren (Freeform), Thursday 8PM - "Dead in the Water"

The latest episode of Freeform's dark mermaid drama.


Supernatural (The CW), Thursday 8PM - "Beat the Devil"

Sam, Dean, Castiel, and Gabriel must work together if they have any hope of bringing Mary and Jack home. Meanwhile, Rowena's encounter with Lucifer may alter the outcome of the journey for one of the heroes.


The Big Bang Theory (CBS), Thursday 8PM - "The Sibling Realignment"

When Sheldon learns that his mother won't attend his wedding unless he invites his brother, Georgie, he and Leonard travel to Texas to end a family feud. Also, the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz, and Koothrappali with pinkeye.


Arrow (The CW), Thursday 9PM - "Docket No. 11-19-41-73"

See more in our "Highlights" section above.


Blindspot (NBC), Friday 8PM - "Let It Go"

After receiving shocking news about Avery's father, Jane and Weller must hunt down an elusive criminal. Meanwhile, Patterson's father helps the team (and his daughter) in the lab.


DuckTales (Disney), Friday 8PM - "The Spear of Selene!"

Donald is dragged into a feud between Scrooge and Zeus, while Dewey and Webby search for an artifact that may provide the truth about Dewey's mother.


MacGyver (CBS), Friday 8PM - "MacGyver + MacGyver"

In the Season 2 finale, MacGyver gets a shocking surprise when he tries to tell Matty that he's quitting the Phoenix Foundation.


Once Upon a Time (ABC), Friday 8PM - "Is This Henry Mills?"

Roni enlists Lucy's help to wake Henry, but things don't go as planned. Meanwhile, Rogers and Weaver go to Margot in hopes of getting through to Tilly. In a flashback, Young Henry struggles to decide what path to follow until a mysterious phone call helps put him on track.


Marvel's Agents of S.H.I.E.L.D. (ABC), Friday 9PM - "The One Who Will Save Us All"

A newly determined Talbot takes Coulson to meet the enemy and attempts to stave off the destruction of Earth.


It's a relatively slow night, so feel free to catch up on your DVR or knock out some streaming binges. If you haven't finished The Handmaid's Tale, dig in. Or head to the theater to see Infinity War for a third time.


Fear the Walking Dead (AMC), Sunday 9PM - "Buried"

Al's questioning uncovers some surprising truths about the group's past. John Dorie receives unexpected news.


The Last Man on Earth (Fox), Sunday 9:30PM - "Cancun, Baby!"

SEASON FINALE: The Season 4 finale: After discovering hidden dangers in their mansion, the group decides to part ways with their home in Zihuatanejo and embark toward a new destination. However, Tandy has second thoughts about what they may be leaving behind.


Westworld (HBO), Sunday 10PM - "Virtu e Fortuna" 

See more in our "Highlights" section above.

Timeless (NBC), Sunday 10PM - "The Day Reagan Was Shot"

The Time Team travels back to 1981 Washington, D.C., on the day President Reagan was shot, only to discover that the Sleeper's target isn't the president but a young rookie police officer—none other than Agent Christopher, who brought the time team together and kept the Lifeboat from getting into Rittenhouse's hands. The Time Team must save Agent Christopher's life and prevent her from making a mistake that set her on a different path that would forever change the future.


Into the Badlands (AMC), Sunday 10PM - "Leopard Snares Rabbit"

Sunny and Bajie go undercover on The Widow's frontlines, seeking passage to a possible cure for Henry. Tilda confronts The Widow.

*TV listing info via TV Guide.