• S1.E1 ∙ Night of the Sentinels: Part 1
• S1.E2 ∙ Night of the Sentinels: Part II
• S1.E3 ∙ Enter Magneto
• S1.E4 ∙ Deadly Reunions
• S1.E5 ∙ Captive Hearts
• S1.E6 ∙ Cold Vengeance
• S1.E7 ∙ Slave Island
• S1.E8 ∙ The Unstoppable Juggernaut
• S1.E9 ∙ The Cure
• S1.E10 ∙ Come the Apocalypse
• S1.E11 ∙ Days of Future Past: Part 1
• S1.E12 ∙ Days of Future Past: Part II
• S1.E13 ∙ The Final Decision

• S2.E1 ∙ 'Til Death Do Us Part: Part One
• S2.E2 ∙ 'Til Death Do Us Part: Part Two
• S2.E3 ∙ Whatever It Takes
• S2.E4 ∙ Red Dawn
• S2.E5 ∙ Repo Man
• S2.E6 ∙ X-Ternally Yours
• S2.E7 ∙ Time Fugitives - Part One
• S2.E8 ∙ Time Fugitives - Part Two
• S2.E9 ∙ A Rogue's Tale
• S2.E10 ∙ Beauty and the Beast
• S2.E11 ∙ Mojovision
• S2.E12 ∙ Reunion - Part One
• S2.E13 ∙ Reunion - Part Two

• S3.E1 ∙ Out of the Past - Part I
• S3.E2 ∙ Out of the Past - Part II
• S3.E3 ∙ The Phoenix Saga, Part I: Sacrifice
• S3.E4 ∙ The Phoenix Saga, Part II: The Dark Shroud
• S3.E5 ∙ The Phoenix Saga, Part III: Cry of the Banshee
• S3.E6 ∙ The Phoenix Saga, Part IV: The Starjammers
• S3.E7 ∙ The Phoenix Saga, Part V: Child of Light
• S3.E8 ∙ Savage Land, Strange Heart - Part One
• S3.E9 ∙ Savage Land, Strange Heart - Part Two
• S3.E10 ∙ Obsession
• S3.E11 ∙ The Dark Phoenix, Part I: Dazzled
• S3.E12 ∙ The Dark Phoenix, Part II: The Inner Circle
• S3.E13 ∙ The Dark Phoenix, Part III: The Dark Phoenix
• S3.E14 ∙ The Dark Phoenix, Part VI: The Fate of Phoenix
• S3.E15 ∙ Cold Comfort
• S3.E16 ∙ Orphan's End
• S3.E17 ∙ The Juggernaut Returns
• S3.E18 ∙ Nightcrawler
• S3.E19 ∙ Weapon X, Lies, and Video Tape

• S4.E1 ∙ One Man's Worth Part I
• S4.E2 ∙ One Man's Worth Part II
• S4.E3 ∙ Courage
• S4.E4 ∙ Proteus Part I
• S4.E5 ∙ Proteus Part II
• S4.E6 ∙ Sanctuary Part I
• S4.E7 ∙ Sanctuary Part II
• S4.E8 ∙ Beyond Good & Evil: Part 1
• S4.E9 ∙ Beyond Good and Evil: Part 2
• S4.E10 ∙ Beyond Good and Evil: Part 3
• S4.E11 ∙ Beyond Good and Evil: Part 4
• S4.E12 ∙ Have Yourself a Morlock Little X-Mas
• S4.E13 ∙ Lotus and the Steel
• S4.E14 ∙ Love in Vain
• S4.E15 ∙ Secrets, Not Long Buried
• S4.E16 ∙ Xavier Remembers
• S4.E17 ∙ Family Ties

• S5.E1 ∙ Phalanx Covenant Part One
• S5.E2 ∙ The Phalanx Covenant Part II
• S5.E3 ∙ A Deal with the Devil
• S5.E4 ∙ No Mutant Is an Island
• S5.E5 ∙ Longshot
• S5.E6 ∙ Bloodlines
• S5.E7 ∙ Storm Front Part I
• S5.E8 ∙ Storm Front Part II
• S5.E9 ∙ Jubilee's Fairytale Theater
• S5.E10 ∙ The Fifth Horseman
• S5.E11 ∙ Old Soldiers
• S5.E12 ∙ Descent
• S5.E13 ∙ Hidden Agendas
• S5.E14 ∙ Graduation Day