Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Young Justice Season 4 Episodes
Season 4 Episode Guide
26 Episodes 2021 - 2022
Episode 1
Inhospitable
Sat, Oct 16, 202125 mins
While Miss Martian and Superboy, accompanied by John Jonzz and Beast Boy, go to Mars to complete their wedding rituals, they encounter changing societal dynamics, increasing hostility towards Earth, and a royal conspiracy, being watched from shadows by some visitors.
Episode 2
Needful
Sat, Oct 16, 202124 mins
M'gann, Em'ree, and the others try to determine if J'onn survived the Zeta Tube explosion. Conner and M'gann go to the place of their marriage ceremony, taking Gar alone, but someone attacks the three mysterious pursuers following the Earthers and then gives a present to R'ess.
Episode 3
Volatile
Thu, Oct 21, 2021
The males and females split up to prepare for Conner and M'gann's wedding. While M'gann and Em'ree air their differences, the psychic damage done to Gar earlier manifests and he goes berserk, endangering Conner and forcing the Legionnaires to secretly help out.
Episode 4
Involuntary
Thu, Oct 28, 2021
The investigation into the king's murder continues, and Conner uncovers the killer. When the heroes confront the killer, the murder reveals what happen and why, and J'emm blames himself. Meanwhile, Conner finds the gene bomb that M'comm planted, and risks his life to disable it.
Episode 5
Tale of Two Sisters
Thu, Nov 4, 2021
Onyx Adams and Cassandra Savage both leave the Shadows--or so they claim--and come to Huntress looking for help and protection. Tigress has problems of her own, dealing with the news that Conner died on Mars, and with trying to patch up her relationship with her sister Jade.
Episode 6
Artemis Through the Looking Glass
Thu, Nov 11, 2021
Artemis considers her past with Jade, as she tries to determine whether Onyx or Cassandra or both are moles sent by the League of Shadows to infiltrate Young Justice. Orphan's parentage is revealed, as Black Spider and Rictus infiltrate the secret base to recover the prisoners.
Episode 7
The Lady, or the Tigress?
Thu, Nov 18, 2021
Tigress, Cassandra, and Onyx infiltrate Infinity Island to rescue Orphan. On Mars, Miss Martian deals with Conner's death in her own way. In the past, the Bat Family unites to stop Joker from killing the UN delegates and getting his revenge on Vandal Savage by keeping the secret of the Light from him.
Episode 8
I Know Why the Caged Cat Sings
Thu, Nov 25, 2021
Tigress, Onyx, and Orphan fight their way out of Santa Prisca, but Shiva has something to say about their departure. Meanwhile, Jade considers whether to rejoin her daughter, while Clark explains the facts of life, and death, to his son Johnny.
Episode 9
Odnu!
Thu, Dec 2, 2021
A mystical force of Chaos arrives on the Earthly plane, interrupting Klarion's battle with Zatanna and her proteges and forcing Klarion to deal with the new threat. Meanwhile, an enigmatic stranger warns Vandal Savage of the millennia-old battle between Order and Chaos,
Episode 10
Nomed Esir!
Thu, Dec 9, 2021
Klarion fights for his existence against Child and Flaw. Meanwhile, the Phantom Stranger reveals to Zatanna the need to ensure that Klarion wins, while Vandal Savage seeks allies of his own. In space, M'gann deals with her grief over the death of Conner.
Episode 11
Teg Ydaer!
Thu, Dec 16, 2021
Zatanna brings her students to the Tower of Fate seeking Dr. Fate as an ally, and he tests the thee students to see if they're worthy. However, Fate faces a test of his own. Meanwhile, Klarion loses his anchor to the mortal realm while fighting Child, and his easy departure leaves Earth vulnerable to the other Lords of Chaos.
Episode 12
Og Htrof Dna Reuqnoc!
Thu, Dec 23, 2021
The secret history of Zatara is revealed, as Klarion possesses an item to gain a physical body on the material plane and find a suitable hero. Meanwhile, the Sentinels try to track down Chaos and put an end to her reign of Chaos across the world.
Episode 13
Kaerb Ym traeh!
Thu, Dec 30, 2021
Fate and the Sentinels of Magic form an alliance with Klarion to stop Child and Flaw from destroying the planet, while Phantom Stranger and Vandal try to convince the Lords of Order and Chaos to maintain the balance between the two forces on Earth.
Episode 14
Nautical Twilight
Thu, Mar 31, 2022
The nations beneath the waves meet for their annual conference in Poseidonis, and Ocean Master launches an attack which is thwarted by a mysterious stranger. Violet meets with Gabrielle's mother to seek answers about Islam, while Connor find himself alive...or is he?
Episode 15
Ebb Tide
Thu, Mar 31, 2022
The two surviving Legionnaires contact Superman and tell him where he needs to be in 10 years' time. Meanwhile, Kal and Orin receive an unexpected ally in their attempts to save Poseidonis from the encroaching red waters caused by Chjild's chaos.
Episode 16
Emergency Dive
Thu, Mar 31, 2022
Orin investigates the mystery of the new Orm and Arion's arrival. Kal leads a team to the Undersea at Orin's request, while Conner meets some familiar faces while traversing the void. Meanwhile, Megan and some friends try to stage an intervention for Gar.
Episode 17
Leviathan Wakes
Thu, Apr 7, 2022
M'gann telepathically scans Orm's mind to determine his connection to the Light, while Kal and his team bring Arion's crown from the Undersea. Meanwhile the people of Atlantis call on Arion to rule them as the new High King., and Arion accepts.
Episode 18
Beyond the Grip of the Gods!
Thu, Apr 14, 2022
Rocket, Forager, and the Golden Age Flash travel to New Genesis for a summit between the Justice League, the New Gods, and the Green Lantern Corp. Meanwhile, Ma'alefa'ak meets with Darkseid and the person who has been trying to sabotage the Legion's efforts, and Rachel deals with her autistic son.
Episode 19
Encounter Upon the Razor's Edge!
Thu, Apr 21, 2022
Lor reveals his origins to his allies, while the Legionnaires find an unexpected ally to help them regain their time travel capabilities. On New Genesis, Rocket meets with representatives of the New Gods and the Green Lantern Corps, and gets news about her son. Meanwhile, Razer travels to New Genesis having lost hope, seeking the Red Lantern ring he gave to Metron.
Episode 20
Forbidden Secrets of Civilizations Past
Thu, Apr 28, 2022
While the conference attendees tend to business, Zod shows Conner around his new kingdom. Lor and his allies attempt to get the Phantom Zone Projector from Metron's Eternity Vault and must confront Metron and a baby Sun Eater to acquire their prize.
Episode 21
Odyssey of Death!
Thu, May 5, 2022
One hero falls and another rises, as Rocket and her team attempt to stop Dru-Zod from using the stolen Projector to open a portal to the Phantom Zone and rescuing his father Lor-Zod and bringing him to the real world. Meanwhile, the treaty between the New Gods, the Green Lantern Corp, and the League is resolved.
Episode 22
Rescue and Search
Thu, May 12, 2022
Zatanna approaches Dick Grayson and then her fellow teammates to find Conner, and unravel the mystery of Impulse's disappearance. Lor-Zod goes to Oa seeking the Kaiser-Thrall, and Zod finds more information about Krypton's destruction from Conner.
Episode 23
Ego and Superego
Thu, May 19, 2022
Phantom Girl tries to help Conner escape the Phantom Zone but is betrayed. Young Justice restores the school bus, while King Brion begins to have second thoughts about Markovia's meta-human transport program. Meanwhile, Violet considers her relationships with Brion and Harper.
Episode 24
Zenith and Abyss
Thu, May 26, 2022
Young Justice makes their way to the Phantom Zone, but their attempt to rescue Conner doesn't go as planned. Meanwhile, Phantom Girl makes contact with Miss Martian and the League, and they attempt to enter the Zone to rescue Conner from their end.
Episode 25
Over and Out
Thu, Jun 2, 2022
Zod finds a way to leave the Zone, and Ursa gains a new source of power. Young Justice attempts to keep the Kryptonian prisoners from escaping, and do so at the cost of two of their own, while Conner has to make a decision about where his loyalties lie.
Episode 26
Death and Rebirth
Thu, Jun 9, 2022
The heroes battle Zod and his four compatriots in the heart of Metropolis, Conner's loyalties are tested by Zod, and the final fate of Lor-Zod is determined. Afterward, two heroes are united in wedlock while Darkseid gains two new allies and Vandal Savage gathers his new army.
