Watch Shadowhunters Season 3 full episodes online, free and paid options via our partners and affiliates.

Clary Has a Plan - Shadowhunters
Watch Shadowhunters Season 3 Episode 21
"Alliance"
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On Shadowhunters Season 3 Episode 21, Clary comes up with a plan that will bring Shadowhunters and Downworlders together, as Alec struggles to help Magnus.

Friend or Foe - Shadowhunters Season 3 Episode 20
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"City of Glass"
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Alec, Jace and Isabelle make a plan to finally get Clary back and stop Jonathan-much to Luke’s and Simon’s chagrin. Meanwhile, an emotionally raw Magnus struggles to deal with his father’s reappearance and Maia must make a tough decision that could affect the rest of her life.

Sizzy - Shadowhunters Season 3 Episode 19
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"Aku Cinta Kamu"
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To try and save Clary from Jonathan, Jace goes undercover. Back at the Institute, Isabelle, Simon and Luke race to find a way to finally destroy Clary’s bond with Jonathan. With time running out, can Isabelle create the solution before Jace’s cover is blown?

Connection - Shadowhunters Season 3 Episode 18
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"The Beast Within"
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A demon outbreak in New York City on Halloween becomes a top priority at the Institute, but as the Shadowhunters hunt the demons, Jace becomes more worried about Clary. Meanwhile, Alec has to juggle the outbreak with his deep concern about Magnus’ depression.

Secret Mission - Shadowhunters Season 3 Episode 17
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"Heavenly Fire"
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Simon and Izzy team up on a secret mission to figure out what the Clave is hiding. Meanwhile, Clary is conflicted about Jonathan as the Shadowhunters try to get answers.

Crisis - Shadowhunters Season 3 Episode 16
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"Stay With Me"
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Clary and Jace come up with a risky plan to get rid of her twinning rune, which may bring an old enemy back into the fray. Meanwhile, Alec is worried about Magnus.

Sibling Team Up - Shadowhunters Season 3 Episode 15
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"To the Night Children"
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As the saying goes, “rules are made to be broken.” But what if the rules are there for a reason? Several members of the team must examine the reasoning behind certain rules after consequences to questionable actions come to light. Whether the rules were broken because of love, loyalty or revenge, does the end justify the means?

Honesty Hour - Shadowhunters Season 3 Episode 14
Watch Shadowhunters Season 3 Episode 14
"A Kiss From A Rose"
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On Shadowhunters Season 3 Episode 14, Isabelle asks Alec for help in tracking down information on the Clave's downworlder prison, and Jace takes Clary on a special date.

Sizzy Smiles - Shadowhunters
Watch Shadowhunters Season 3 Episode 13
"Beati Bellicosi"
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On Shadowhunters Season 3 Episode 13, Jordan and the Praetor continue their search for Heidi, and Isabelle gets information about the Clave prisons.

The Oldest Vampire - Shadowhunters
Watch Shadowhunters Season 3 Episode 12
"Original Sin"
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On Shadowhunters Season 3 Episode 12, Simon is determined to get rid of the Mark of Cain, and Clary desperately tries to escape her current situation.

Facing True Evil - Shadowhunters
Watch Shadowhunters Season 3 Episode 11
"Lost Souls"
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On Shadowhunters Season 3 Episode 11, the group deals with the loss of Clary, and a new evil moves into town in the form of Jonathan Morgenstern.

Stopping Lilith's Plan - Shadowhunters
Watch Shadowhunters Season 3 Episode 10
"Erchomai"
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On Shadowhunters Season 3 Episode 10, the team scrambles to find a way to put a stop to Lilith's plan, while Simon makes a heartbreaking choice.

Before The Sword - Shadowhunters
Watch Shadowhunters Season 3 Episode 8
"A Heart of Darkness"
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On Shadowhunters Season 3 Episode 8, the group tries to use a spell to reach Jace inside of the Owl Demon, and Luke works to free Clary from her confinement.

Work Table - Shadowhunters
Watch Shadowhunters Season 3 Episode 7
"Salt In The Wound"
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On Shadowhunters Season 3 Episode 7, Luke and Simon search for Lilith's latest victim, and the group heads to Alicante to find a way to stop the owl demon.

Dinner With The Family - Shadowhunters
Watch Shadowhunters Season 3 Episode 6
"A Window Into An Empty Room"
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On Shadowhunters Season 3 Episode 6, Simon is stunned by an unexpected visitor, while Clary teams up with Magnus to investigate a recent demon attack.

Who Is After Simon? - Shadowhunters
Watch Shadowhunters Season 3 Episode 5
"Stronger Than Heaven"
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On Shadowhunters Season 3 Episode 5, Jace is on the hunt to find out who is out to get Simon, while Clary turns to Luke to find a way to help.

"Clace" Romance - Shadowhunters
Watch Shadowhunters Season 3 Episode 4
"Thy Soul Instructed"
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On Shadowhunters Season 3 Episode 4, Jace asks Luke for help to learn more about his family's past, and Clary and Izzy search for a rogue vampire.

Imposing Force - Shadowhunters
Watch Shadowhunters Season 3 Episode 3
"What Lies Beneath"
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On Shadowhunters Season 3 Episode 3, the group tries to track down the new imposing threat, and Alec hosts a family dinner when his mother arrives in town.

The New High Warlock - Shadowhunters
Watch Shadowhunters Season 3 Episode 2
"The Powers That Be"
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On Shadowhunters Season 3 Episode 2, the Warlocks' magic becomes corrupted by a demonic presence, and Izzy and Luke investigate a string of possessions.

Shadowhunters Season 3 Quotes

Alec: The love I have for you...
Magnus: Is a love that knows no bounds.

Luke: You know, I’m proud of you, Kiddo. It’s not every day you get an angelic rune. Pick your weapons yet?
Clary: Yeah.
[She shows the first blade]
Clary: What is it?
Luke: That was your father’s dagger.
Clary: What?!
Luke: You didn’t know?
Clary: I didn’t know. I had no idea.
[She shows the second dagger]
Clary: I choose this one too.
Luke: You don’t choose the blades. The blades choose you. That one was Jocelyn’s.
Clary: What?
Luke: They’re both part of you, Kiddo. The light and the dark, whether you like it or not.