We jump right back into the action in this episode, with Londo showing Sheridan the destroyed Centauri capitol city.  He goes on a minor rant, and then has Sheridan sent away, promising to execute him the next time he summons him. Sheridan gets thrown in a cell, and experiences some time shifting pains, appearing momentarily to Zathras, before fading away again. When he bounces back into the future, Delenn gets dumped into his cell with him.  He is shocked when she embraces him and promises him that their son is safe.   

Back on Babylon 4 the B4 construction staff are rattled by the explosion, and are scrambling to increase security patrols, meaning that Ivanova and Marcus get interrupted in their search for an open access panel. Luckily Marcus and Ivanova manage to knock out both guards and then accidentally open up the access panel that they were searching for.  They short some things out and make the B4 staff think that a hull breach has been detected, allowing the B5 team to get to work.

Back in the future, Delenn figures things out, and they share some happy moments together before guards come to take them away.  They are brought before Londo again, and this time he is incredibly drunk.  Despite this he seems more lucid than he had before.  He haltingly explains that he is being controlled by an alien organism attached to his neck.  He lets them know he has figured out how to drug his “keeper” by drinking the right amount of liquor.  Londo begs Sheridan and Delenn to save his people, and arranges for them to escape the palace.  After they leave, an elderly G’Kar emerges, complete with a crude eye patch.  Londo begs G’Kar to kill him to prevent the keeper from waking up and warning it’s friends about what Londo has done.  We then get to see Londo’s dream about his own death play out, as G’Kar’s attack wakes the keeper and they strangle each other.  Vir comes upon the scene and picks up the imperial crest from the ground.

Delenn gets one last message to Sheridan before he leaves for good.  She begs him to not go to Za’Ha’Dum.  Shortly after he leaves her, he appears inside a space suit that Zathras has prepared. As Ivanova and Marcus check on him, Sinclair shows up, also dressed in the same space suit.  The two assemble some equipment on the station’s fusion core, though the B4 staff accidentally trigger it when they decide to push their reactor.  This causes them to also want to evacuate, which triggers the events of “Babylon Squared”.

Delenn gets a flash forward of watching Sheridan sleep in his quarters on Babylon 5, she walks over to play with a snow globe and someone shocking opens the door causing her to drop it.  She snaps out of it, and Zathras helpfully explains what is happening.  This is interrupted by an aged Sinclair.  Multiple exposures to time travel has caused him to age.  He brushes off their concern by focusing on Sheridan being missing again.  Zathras and Ivanova go to search for tools, leading to Zathras being captured, which sets up further events from the previous episode. 

We get a rehash of scenes from two years ago, this time with the additional context from these two episodes even if some things dont really line up perfectly. 

Once we get past the previous episode Marcus points out that Sinclair has been keeping everyone running around to avoid one important fact: someone has to ride Babylon 4 into the past, and it is going to be him.  Delenn clearly knew this as well, and Sinclair points out that it has to be him, because it always has been him that goes back.  He shows the others the letter from 900 years in the past, written in his own handwriting.  Ivanova and Marcus leave, and Zathras explains that he knows many secrets about Sheridan, Sinclair and Delenn.  He also claims to know their destinies.  After his speech Sheridan and Delenn depart to leave them to their time travel adventures. 

Once everyone is back in the present Delenn explains some things to the others, and lets them know the big shocker: Valen the hero of the first Shadow War and uniter of the Minbari people was actually Sinclair, making use of the same crystal technology that turned Delenn half-human, to turn himself into a Minbari. We get to see the fully transformed Sinclair, flanked by Vorlons welcome the Minbari to the station.  

Tubi has forsaken us, so now Roku and Youtube are where you can find Babylon 5 for free. 

Where do I know them from?

• Since we didnt get to do him the first time he appeared, Kent Broadhurst the officer in charge of Babylon 4, is another TV frequent flyer, but I know him best as the parent of a mauled child in The Silver Bullet.

The Good

• We get a satisfying conclusion to Jeffery Sinclair’s arc, and end the mystery of Babylon 4, and even Valen which was not really a mystery.  
• The episode also does a good job of seeding some new mysteries with the flash forwards experienced by the characters. 

The Bad

• I felt a little like padding of the episode when they let so many “Babylon Squared” scenes run for so long. 

Arc Points (Spoilers Ahead)

• This episode manages to stick the landing pretty well and pass things off to Sheridan.  It is always fun to imagine what might of been without the character switch.  Catherine Sakai was certain to go missing or be killed by the Shadows (instead of Anna Sheridan).  JMS was able to go with the flow and turn out something that you can only really see the seams on if you know what you are looking for.
• I always enjoy the subtle differences in design on Babylon 4, and I like some of the reminders that it is a more advanced station then Babylon 5, like when the first officer mentions that they can run the station from the docking bay. 
• I also like how the episode in it’s final moments confirms that there will be no more time travel shenanigans. 
• If you hate Zathras, then you will be upset later by his brother, Zaathras appearing.  If you love him you probably love the joke that there a bunch of him.