Supergirl returned to protect National City as the DC superhero TV series entered Season 4 in October 2018, but then the show went on a mid-season break and fans have been waiting for what feels like forever for it to return.

When does Supergirl Season 4 return?

In the UK Season 4 began on 22 October 2018. Following a mid-season break it is back on our screens on Monday 4 March at 8pm on Sky One. The next episode is on Monday 18 March at 8pm.

How to watch Supergirl in the UK

If you're not already a Sky (channel 106) or Virgin Media (channel 109/110) customer, Now TV's £7.99 per month Entertainment deal is the easiest and cheapest way to watch Sky One, the channel on which you'll find Supergirl. It also has the entire back catalogue of Supergirl seasons 1-3 on catch-up.

There's a 14-day free trial, and if you decide to subscribe you can cancel your rolling monthly subscription at any time.  

There are various ways to stream Now TV, including via LG and Samsung smart TVs, Now TV Smart Stick, Roku, Chromecast, YouView, EETV, Apple TV, PlayStation or Xbox. You can also watch on your phone, tablet, laptop, PC or Mac with support for Android, iOS, Windows and macOS.

As well as access to Sky One and 250 TV boxsets you'll be able to watch Sky Atlantic and Fox UK, which will offer access to hit programmes such as The Walking Dead and Game of Thrones when they next screen. Other channels included in the package are SyFy, Sky Witness, MTV, Gold, Comedy Central, Sky Arts, Discovery and Nat Geo Wild.

An alternative is to watch Supergirl on YouTube, where single episodes cost £1.99 and you can get a full season from £20.99.

Supergirl Season 4 rumours

Season 3 saw Supergirl and friends emerge victorious over the world killers, but fans were left wondering where the series would go next as J'onn (David Harewood) stepped down from the DEO and new Director Alex (Chyler Leigh) was visibly torn between her job and desire to become a mother. J'onn will still feature in the show, and the actor has teased that he may even find love.

Kara (Melissa Benoist) has confirmed that the new season will be based on a comic book called the Red Son, and that it will explore the idea of nature versus nurture as Kara's doppelganger shows up in Siberia. The Red Son is an alternative storyline for Superman that shows him brought up as a Soviet hero rather than Superman as we know him.

The Guardian (Mehcad Brooks) will also return in Season 4, and now with his secret exposed the show will explore how the idea of a black, non-alien superhero is met by National City. His girlfriend, Lena Luther (Katie McGrath) continues the good work she put in during Season 3, developing technologies she thinks will help the world.

We've lost Mon-El (Chris Wood), Sam (Odette Annable), and at least temporarily Winn (Jeremy Jordan), but Brainiac-5 (Jesse Rath) will step into his shoes at the new DEO tech wizard, struggling to come to terms with life in the 21st century.

All the best superheroes seem to start out as reporters, and so it will be for 'Dreamer'. Starting Season 4 as a new reporter at CatCo, we follow the journey of Nia Nal, played by Nicole Maines, as she becomes TV's first transgender superhero, able to see into the future. The journalists at CatCo will band together to take on human-first hate group Children of Liberty.

Other new characters will include Agent Liberty (Sam Witwer) as the leader of Children Of Liberty, Manchester Black (David Ajala), Colonel Haley (April Parker Jones), and Mercy (Rhona Mitra) and Otis Graves (Robert Baker).

This season's ArrowVerse crossover will take place in Gotham City, where we meet Batwoman Kate Kane (Ruby Rose), and will also include Superman (Tyler Hoechlin) and Lois Lane (Elizabeth Tulloch).

Supergirl has a new costume in Season 4, too:

Supergirl season 4 costume

Supergirl Season 3 recap

  1. Girl Of Steel
  2. Triggers
  3. Far From The Tree
  4. The Faithful
  5. Damage
  6. Midvale
  7. Wake Up
  8. Crisis on Earth X, Part I (crossover with Arrow, The Flash and Legends Of Tomorrow)
  9. Reign
  10. Legion Of Superheroes
  11. Fort Rozz
  12. For Good
  13. Both Sides Now
  14. Schott Through The Heart
  15. In Search Of Lost Time
  16. Trinity
  17. Shelter From The Storm
  18. The Fanatical
  19. Dark Side Of The Moon
  20. Not Kansas
  21. Make It Reign
  22. Battles Lost And Won

Can life get any more complicated for Supergirl in Season 3? Having found the lover she spent many episodes mourning and discovering not all of Krypton is gone after all, she discovers one has a new bride and the other links to a trio of world killers.

Elsewhere Kara is called in yet again to clear Lena's name, but recent events leave the pair's once strong friendship hanging by a thread. It's not the only friendship she should be doubting either, as the team rallies round to save newcomer Sam from Reign.

Supergirl Season 2 recap

  1. The Adventures Of Supergirl
  2. Last Children Of Krypton
  3. Welcome To Earth
  4. Survivors
  5. Crossfire
  6. Changing
  7. The Darkest Places
  8. Medusa (crossover with The Flash, Arrow and Legends Of Tomorrow)
  9. Supergirl Lives
  10. We Can Be Heroes
  11. The Martian Chronicles
  12. Luthors
  13. Mr & Mrs Mxyzptlk
  14. Homecoming
  15. Exodus
  16. Starcrossed
  17. Distant Sun
  18. Ace Reporter
  19. Alex
  20. City Of Lost Children
  21. Resist
  22. Nevertheless, She Persisted

Supergirl teams up with her cousin, Superman, at the start of Season 2, but it's not long before the city is turning on its alien residents: first the superhero is targeted with kryptonite by Cadmus, led by Lena's mother, and later finds herself with a bounty placed on her head.

It's not all doom and gloom as Kara and Alex's father is rescued from Cadmus, though new boyfriend Mon-El isn't so sure everything is as it seems. Kara also finds an unexpected aid in The Guardian. 

Supergirl Season 1 recap

  1. Pilot
  2. Stronger Together
  3. Fight Or Flight
  4. Livewire
  5. How Does She Do It?
  6. Red Faced
  7. Human For A Day
  8. Hostile Takeover
  9. Blood Bonds
  10. Childish Things
  11. Strange Visitor From Another Planet
  12. Bizarro
  13. For The Girl Who Has Everything
  14. Solitude
  15. Falling
  16. Manhunter
  17. World's Finest (crossover with The Flash)
  18. Myriad
  19. Better Angels

Sent to Earth to protect her baby cousin Superman, Kara Zor-El's pod was thrown off course. When she eventually arrived he had already grown up, so instead she settled into family life with the Danvers.

Under the guise of Kara Danvers and now as an adult, Supergirl begins to embrace her superpowers for good, making the decision to protect National City from all who would wrong its citizens. She's off to a rocky start, though, as her efforts to help do more harm than good.

Season one introduces key characters including her sister Alex and fellow DEO agent J'onn, colleagues Winn and Jimmy (James Olsen), and new boss Cat. Kara struggles to balance life as a superhero with her day job, especially when faced with her first real threat: Auntie Astra and her hubby Non.

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