Where to stream Supergirl

Season 3

Supergirl

Action
Adventure
Drama
Sci-Fi
TV-PG
6.2 / 10

Season released 9th Oct, 2017.

Where to Watch

Apple TV

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All seasons may not be available on all providers.

Season 3 Episodes

S03 Episode 1

Girl of Steel

Kara handles the loss of Mon-El by focusing on being Supergirl and concentrating on a mysterious new threat. Alex reveals a secret to Maggie, a citizen of National City has a connection to Kara, and Lena takes a bold move.

40 mins · Mon, 9 Oct 2017

S03 Episode 2

Triggers

A thief with psychic powers attacks National City, immobilising victims by tapping into their worst fears. Samantha begins her new job at L-Corp.

40 mins · Mon, 16 Oct 2017

S03 Episode 3

Far From the Tree

Eliza throws Alex and Maggie a wedding shower, Maggie reaches out to her estranged father and Supergirl joins J'onn on a personal mission.

42 mins · Mon, 23 Oct 2017

S03 Episode 4

The Faithful

Kara investigates a new group with a mysterious connection to Supergirl, Samantha feels like she's letting Ruby down and J'onn confesses an old secret.

42 mins · Mon, 30 Oct 2017

S03 Episode 5

Damage

Morgan Edge blames Lena's lead bomb when multiple children get sick, Kara teams up with Samantha to clear Lena's name and Alex and Maggie come to a decision about their relationship.

42 mins · Mon, 6 Nov 2017

S03 Episode 6

Midvale

Kara recalls a painful memory from childhood involving the death of a friend. The Danver sisters reflect on how the traumatic experience brought them closer.

42 mins · Mon, 13 Nov 2017

S03 Episode 7

Wake Up

Kara looks into an alien ship that crash lands underwater beneath National City. Hank tries to bond with his father. Samantha seeks answers from her estranged mother.

40 mins · Mon, 20 Nov 2017

S03 Episode 8

Crisis on Earth-X, Part 1

When villains from Earth-X launch an attack at Barry and Iris's wedding, the superheroes work together to save the world.

40 mins · Mon, 27 Nov 2017

S03 Episode 9

Reign

A strange symbol begins to appear all over National City, which turns out to be the mark of the World Killer, Reign. Tension continues to increase between Lena and Morgan Edge.

42 mins · Mon, 4 Dec 2017

S03 Episode 10

Legion of Superheroes

Struggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached. Mon-El recruits a Legion member to try bringing her back, and the DEO teams up with the Legion of Superheroes to try to stop Reign.

42 mins · Mon, 15 Jan 2018

S03 Episode 11

Fort Rozz

Supergirl teams up with Saturn Girl, Livewire and Psi to recover a prisoner who has information on how to defeat Reign.

42 mins · Mon, 22 Jan 2018

S03 Episode 12

For Good

Kara intervenes and helps Lena when she receives threats from Morgan. Alex runs some medical tests to see if she's able to help Sam.

42 mins · Mon, 29 Jan 2018

S03 Episode 13

Both Sides Now

J'onn, Winn and Mon-El work together to patch up the Legion ship. Supergirl and Alex use different means of interrogation to learn how to defeat Reign after the DEO captures a second Worldkiller.

42 mins · Mon, 5 Feb 2018

S03 Episode 14

Schott Through the Heart

Winn's father passes away in prison, and his estranged mother returns to try and reconnect with him after explaining why she left him. A copycat Toyman attacks, and the two must join forces to stop the culprit.

40 mins · Mon, 16 Apr 2018

S03 Episode 15

In Search of Lost Time

Myr'nn causes psychic disturbances at the DEO, and Supergirl must work with J'onn to contain the chaotic situation. Meanwhile, Mon-El commences teaching Kara fighting techniques from the future.

40 mins · Mon, 23 Apr 2018

S03 Episode 16

Of Two Minds

Supergirl and Imra disagree on how to stop the third Worldkiller, but when Pestilence injures Alex and Winn, the two join forces to stop the destruction.

40 mins · Mon, 30 Apr 2018

S03 Episode 17

Trinity

Supergirl turns to Guardian for help in the wake of discovering Lena's secret. Meanwhile, Supergirl and the team prepare to face off against all three Worldkillers.

42 mins · Mon, 7 May 2018

S03 Episode 18

Shelter From the Storm

Supergirl and Alex work together to keep Ruby safe when she becomes Reign's new target. Supergirl and J'onn seek advice from Sam's mum on how to stop Reign.

42 mins · Mon, 14 May 2018

S03 Episode 19

The Fanatical

Kara and James receive a journal from an escaped disciple of Coville, and hope to find a means to save Sam in its pages. Meanwhile, someone threatens to expose James' secret, if he doesn't do as instructed.

42 mins · Mon, 21 May 2018

S03 Episode 20

Dark Side of the Moon

Supergirl's world is turned upside down when she learns a secret about Krypton's demise. Alex is attacked while out with Ruby, and Lena considers the lengths she will go to to keep Reign contained.

40 mins · Mon, 28 May 2018

S03 Episode 21

Not Kansas

Kara makes a decision with the potential to change her life forever, and J'onn learns that Special DEO-caliber guns have made it to the streets of National City.

40 mins · Mon, 4 Jun 2018

S03 Episode 22

Make It Reign

Supergirl, Mon-El, and Alura learn the truth of Serena's plans for Earth and must concoct a plan to prevent her from carrying them out, while J'onn prepares to say goodbye to his father.

40 mins · Mon, 11 Jun 2018

S03 Episode 23

Battles Lost and Won

Supergirl and the team go head to head with the Dark Kryptonians in an epic battle for Earth, and fight to save their friend. Meanwhile, Winn is offered a once in a lifetime opportunity.

40 mins · Mon, 18 Jun 2018

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Season 1

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