There’s more than one of everything.  That was the title and pretty much summary of the season finale of Fringe on Tuesday - another you, another me, another world.  Walter Bishop posited that déjà vu is a glimpse into that other world – you think you have been there before, because you actually already have – in an alternate reality, a reality slightly different from our own.  It’s an interesting take on déjà vu.  Theories of alternate realities are not new, though in Fringe it seems to be an assumption that there is only one other reality (at least that is all the characters have told us), and that certain people can cross over in their mind, or in reality.  It turns out Olivia Dunham may be one of these people.  She has finally admitted to herself that she believes she was given Cortexiphan during a drug trial as a child – and it looks like Walter Bishop may be involved.

The episode focuses on the character of David Robert Jones, who is dying because of his previous teleportation out of jail.  He is trying to cross over into the alternate reality, and according to Nina Sharp from who he stole a power cell out of her bionic arm, it’s to prove to William Bell he is special, and then kill him.  How does he do it?  He needs to find the “soft spots” where the “membrane” between the two worlds is thinnest, and then break through.  This helps Olivia to finally make a connection between all of the strange occurrences that others could not – they seem to radiate outward from the spots – and these spots of decay are growing in number from all the messing around Massive Dynamic has been doing.

What else does this mean?  It also means that it is time, as the Observer says.  It’s time for Walter to find something.  After a lot of frustration he finally remembers that he once lost something very precious to him and thought that if he could just cross over he could take it from that world.  Walter finally finds the device.  It’s a sort of “plug” for the “holes,” to close them down – that is if Jones can get them to stay open.  It is also to block things from coming through from the other side, such as part of a truck that comes through.  They also learn not to get to close to the “hole” when it is closing or part of you may go with it.

Meanwhile, Olivia is still trying to meet with William Bell, which Nina says will happen, if Olivia can get to him before Jones.  Problem is, he’s not around – not in this world anyway (Which makes me wonder, are there ramifications of having two people in one world?  We already know from the Observer that this more than one of everything).

It turns out that stopping Jones is not as easy as Olivia first thought – the teleportation may be killing him, but for the moment, it has made him unaffected by bullets, as they go right through him.

It’s Walter’s device that comes to the rescue, as it shuts down the “hole” as Jones starts to pass through – slicing him in half, leaving part of him behind in both worlds.

Then, in probably the most shocking moment of the episode, we find out what Walter lost as he visits a tombstone – a tombstone engraved with the name “Peter Bishop,” his son.  Does this tell us how the Observer saved Peter?  Did he bring him over from another world (and that throws out the cloning theories, unless he only retrieved his DNA)?  Is this why Peter seemed different than Walter remembered when he first came to take him from the hospital?  We will have to wait and see.

Meanwhile, Olivia kept her promise so Nina keeps hers and sets up a meeting with Bell.  Though as Olivia waits for hours, it seems she’s been lied to.  That is until she takes the elevator which somehow is a catalyst (unless Bell opened a “hole”) for Olivia to cross over into the other world.  So Olivia finally gets to meet Bell – though of course we won’t get to know what they talk about until next season.  Although, there is one thing we do know for sure.  Olivia is not in New York anymore, at least not in the New York of her world (when asked the location Bell tells her it’s complicated), as we see, as the camera pans out to show that they are in one of the Twin Towers of the World Trade Center – which are both intact.

This episode is definitely a crazy ride, tying up some lose ends, but still posing more questions (and with great storytelling and fantastic special effects).  Is the horrible future Walter talked about (that Olivia and the other children were given Cortexiphan to fight) here?  Has all this happened in the other world and maybe the Observer is looking for the signs?  Is Bell behind it all?  How is Walter involved? Did Olivia find the pattern, or is there more to it? And most importantly, who, or what, is Peter Bishop?