TV THIS WEEK: Falling Skies' finale, Daleks return to Who, and more!

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Aug 25, 2014, 3:36 PM EDT

We're still waiting for all those big fall premieres, but this week we're staying busy with summer finales and more Doctor Who.

With one more season to go, Falling Skies ends its fourth year this Sunday, while Syfy's Defiance ends its second season with no word on a renewal (yet). Plus, Daleks return to Doctor Who, a Star Trek: The Next Generation mini-marathon, and more.

Check out the week in TV below. What's on your watchlist?

Highlights of the Week

Under the Dome (CBS) Monday, 10 p.m. - "The Red Door" 

The last time we checked in with Under the Dome's ratings, the show was slipping significantly from the summer heights it hit last year. In its first season it was a runaway summer hit, and this season it was looking more and more like just another show. So should fans be worried? Not yet, because it turns out the show was able to halt its descent. The series hit an all-time low of about 6.5 million viewers with its fifth episode of the season in late July, but since then it's been slowly climbing back from the pit, and last week it topped 7 million viewers for the first time in a month. Once upon a time those numbers would've looked quite low, but these days they're not too shabby, and Under the Dome is still delivering more viewers than fellow CBS summer series Extant. Plus, as Vulture noted a few weeks ago, CBS is earning quite a bit of money from the series internationally, as well as through a streaming agreement with Amazon. So, if you're worried about losing Chester's Mill, don't worry too much yet. This week Barbie is captured, and Big Jim makes a deal that could change Chester's Mill forever. Check out a preview below.

Extant (CBS) Wednesday, 9 p.m. - "Care and Feeding" and "A Pack of Cards"

For the second straight week, CBS is airing double episodes of Extant, so it seems like a good time to check in and see just how well (or how poorly) that show's doing these days. A few weeks ago, Extant was starting to slip after a fairly modest series premiere, so CBS hoped to stem the bleeding by shifting the show to a new timeslot. The show's numbers didn't improve, but they did stabilize, and they've mostly remained stable, bottoming out at about 5.5 million viewers with four episodes to go. So, is that enough to keep the show afloat for another season? Well, even if it's not, it's important to remember those numbers aren't the only ones to consider. Just like Under the DomeExtant episodes are put on Amazon Prime's streaming service after they air, and that kind of streaming agreement's proved very lucrative for CBS in the past. Extant's not set for extinction just yet. We'll see how the weeks ahead treat it. This week, Yasumoto and Molly make an unlikely team as Sparks flees with Molly's baby.

The Quest (ABC) Thursday, 8 p.m. - "Under Siege" and "A Traitor in Sanctum"

A few weeks ago we talked about the thoroughly underwhelming premiere numbers ABC's new "fantasy reality" series The Quest got, and now that the network has opted to burn off the final six episodes in three consecutive two-hour blocks, it's time to revisit the show and see what the damage is. Over its first four weeks on the air The Quest steadily lost viewers, and last week it slipped below 2 million viewers for the first time. That's not a huge drop considering it had fewer than 3 million viewers to begin with, but things really don't look good here, especially when you consider that its competition has largely been reruns. Could the show have some magic up its sleeve to save itself? Maybe, but it would need to be a pretty potent spell. This week, the Paladins defend against an enemy attack and face the threat of a traitor in their midst.

Star Trek: The Next Generation (BBC America) Friday, 6 p.m. - 11 p.m. - "Season Five Marathon"

Marathon time! - Usually our highlights of the week tend to focus on premieres, finales and ratings look-ins, but it's a slow week. A lot of our summer shows have ended, and we're still not ready for fall premieres. So what's a TV fan to do when you're all alone on a Friday night and there's nothing else on? Watch Star Trek, of course. Though it's got its fair share of fun original programming, BBC America is also a place to randomly discover Star Trek: The Next Generation episodes airing at all hours of the day, and the network frequently airs them in blocks. This Friday night, it's a five-hour block from season five, including episodes like "The Masterpiece Society," "Power Play" and "The Outcast." Sure, you may have already seen them, but are you ever really done with TNG?

Falling Skies (TNT) Sunday, 9 p.m. - "Space Oddity" and "Shoot the Moon"

Two-part season finale! - We've talked before about why Falling Skies is facing its fifth and final season next year. Though the numbers for season four have certainly remained strong for TNT, they've been the weakest the series has ever put up, hitting all-time lows for Live+Same Day viewers three separate times, including two weeks ago. The numbers Falling Skies pulls in are certainly not shabby, and they'd look positively great on another network, but it's an expensive show, and TNT is a big network that wants to keep its prime-time Sunday programming winning big. So Falling Skies is on it way out, but not without another year to produce a satisfying conclusion for its fans. This week, Tom's mission goes awry, Lexi takes extreme measures, and a new Espheni strike looms. Check out a preview below.

Monday, August 25

Teen Wolf (MTV) 10 p.m. - "Monstrous" 

In case you missed this episode at its special time on Sunday, you can catch it again here.

Scott and Kira protect Satomi's pack from assassins. Meanhwile, Stiles and Malia discover the origins of the Dead Pool.

Tuesday, August 26

Face Off (Syfy) 9 p.m. - "Wizard of Wonderland"

The artists work in teams when they take characters from "The Wonderful Wizard of Oz" and reimagine them as though they have fallen down the rabbit hole into "Alice's Wonderland."

Wizard Wars (Syfy) 10 p.m. - "Puppy Love"

Doggy snacks become magical in the hands of two competing teams of illusionists.

Wednesday, August 27

Apart from Extant, it's pretty quiet on Wednesday.

Thursday, August 28

Teen Titans Go! (TOON) 6 p.m. - "Slumber Party" and "Knowledge"

The Titans have a slumber party to help Cyborg face his fear of the dark; Starfire craves knowledge but fears it will make her dull.

Defiance (Syfy) 8 p.m. - "All Things Must Pass" and "I Almost Prayed"

Season finale! - Season two comes to a close with Nolan fighting both the Earth Republic and old acquaintances to stop Irisa's destructive plan from becoming a reality. He's also determined to save his adoptive daughter from the Kaziri forces that have been possessing her before his own friends attempt to kill her.

Friday, August 29

Friday's pretty quiet this week.

Saturday, August 30

Doctor Who (BBC America) 9 p.m. - "Into the Dalek"

A Dalek fleet surrounds a lone rebel ship, and the Doctor is the only one who can help.

Intruders (BBC America) 10 p.m. - "And Here...You Must Listen"

Jack searches for Amy in Seattle, but her movements produce more questions than answers. Meanwhile, Madison finds herself in a train station with a ticket to Seattle, an envelope with money, and a mysterious key, and Richard suffers serious consequences due to an act of humanity.

Outlander (Starz) 9 p.m. - "The Gathering"

Claire plots to escape during the Castle's Gathering ceremony, but encounters with Jamie and a drunken Dougal alter her plans.

Sunday, August 31

The Strain (FX) 10 p.m. - "Creatures of the Night"

Setrakian discovers a powerful new weapon.

Manhattan (WGN) 10 p.m. - "Acceptable Limits: Part One"

Frank seeks medical answers; Charlie and Helen travel to survey an off-site reactor.

Episode synopses via TV Guide