Season 1
(For the most part, these are in the 
correct viewing order on Disney+.)
- Night of the Sentinels I
 
- Night of the Sentinels II
 
- Enter Magneto
 
- Deadly Reunions
 
- Captive Hearts
 
- Cold Vengeance
 
- Slave Island
 
- The Unstoppable Juggernaut
 
- The Cure
 
- Come the Apocalypse
 
- Days of Future Past I
 
- Days of Future Past II
 
- The Final Decision
 
Season 2
(As with season 1, these are in the correct order on Disney+)
- ‘Til Death Do Us Part I
 
- ‘Til Death Do Us Part II
 
- Whatever It Takes
 
- Red Dawn
 
- Repo Man
 
- X-Ternally Yours
 
- Time Fugitives I
 
- Time Fugitives II
 
- A Rogue’s Tale
 
- Beauty and the Beast
 
- MojoVision
 
- Reunion I
 
- Reunion II
 
Season 3
This is where things get tricky. At first, this season plays out the right way, but right after the 
Dark Phoenix episodes, things get wonky. Here’ the right order:
- Out of the Past I
 
- Out of the Past II
 
- Phoenix Saga I
 
- Phoenix Saga II
 
- Phoenix Saga III
 
- Phoenix Saga IV
 
- Phoenix Saga V
 
- No Mutant Is An Island
 
- Obsession
 
- Longshot
 
- Cold Comfort
 
- Savage Land, Savage Heart I
 
- Savage Land, Savage Heart II
 
- Dark Phoenix Saga I
 
- Dark Phoenix Saga II
 
- Dark Phoenix Saga III
 
- Dark Phoenix Saga IV
 
- Orphan’s End
 
- Love In Vain (Disney+ lists this as episode 15 of season 4. It’s not. It should be watched here.)
 
- The Juggernaut Returns
 
- A Deal with the Devil (Disney+ lists this as episode 21 os season 4. It’s not. It should be watched here, after “Juggernaut Returns.”
 
The remaining episodes that Disney+ lists as part of season 3, including “The Lotus and the Steel,” “No Mutant Island,” and “Obsession,” are actually part of season 4.
Season 4
Okay, so the 
entirety of season 4 on Disney+ isn’t even remotely in the right order. You’ll have to hunt around 
within this season to watch everything in the correct order. Plus, some of what 
should be season 5 is mixed in here, too. For example, the opening episodes of this season should be “Sanctuary” parts 1 and 2, but Disney+ had those as episodes 8 and 9. The following is the correct order for this season. Happy hunting!
- Sanctuary I
 
- Sanctuary II
 
- Xavier Remembers
 
- Courage
 
- Secrets Not Long Buried
 
- Nightcrawler (DEFINITELY NOT episode 1 of this season)
 
- One Man’s Worth I
 
- One Man’s Worth II
 
- Proteus I
 
- Proteus II
 
- Family Ties
 
- Bloodlines
 
- The Lotus and the Steel.
 
- Weapon X, Lies, and Videotape
 
- Have Yourself A Morlock Little Christmas
 
- Beyond Good and Evil I
 
- Beyond Good and Evil II
 
- Beyond Good and Evil III
 
- Beyond Good and Evil IV
 
Season 5
Okay phew! Season 5 is also messed up, and you’ll have to look around within what Disney+ lists as season 4 to get the correct order. Here are the final stories, in the right order! For what it’s worth, Disney+ lists “Graduation Day” as the final episode, and, that is actually correct.
- The Phalanx Covenant I
 
- The Phalanx Covenant II
 
- Storm Front I
 
-  Storm Front II
 
- The Fifth Horseman
 
- Jubilee’s Fairy Tale Theatre
 
- Old Soldiers
 
- Hidden Agendas
 
- Descent
 
- Graduation Day