Season Five — Tau'ri
And only now do we seriously address Earth.
By this point Langara has become the center of the franchise.
That's important.
They have relationships with Atlantis.
Jaffa.
Tok'ra.
Destiny.
New civilizations.
They have ships.
They've lost people.
We've attended Langaran funerals.
We've seen marriages and children and political upheaval.
The Notebook has passed from Jonas to the younger generation.
Then somebody finds Earth.
Not by dialing it.
By flying there.
And this should be devastatingly strange.
The audience has spent five years asking:
What happened to Earth?
I'd resist destroying it.
That's too easy.
Instead, Earth is alive.
Billions of people.
Normal civilization.
But there is no Stargate program anymore.
And almost nobody remembers that there ever was one.
Now you've got a mystery worthy of Daniel Jackson.
And eventually someone finds a very old Samantha Carter.
Not commanding a starship.
Not President Carter.
Just Sam.
She remembers.
And when somebody says:
"We're from Langara."
Sam stares at them.
"Jonas?"
That single word carries five seasons.
Season Six — SG-1
This becomes the crescendo.
Earth's isolation wasn't cowardice.
It was containment.
Something happened involving the Ancient network itself.
Perhaps the gate system became vulnerable to something that could propagate through active wormholes.
Earth's solution decades earlier was brutal:
shut down the network.
Not destroy it.
Quarantine it.
That explains everything retroactively.
Earth didn't abandon everyone.
Earth closed the doors.
And perhaps Carter, McKay, Daniel and others constructed the mechanism that did it.
Now Langara has unknowingly been dismantling the quarantine for six years.
Uh-oh.
Suddenly every triumphant reconnection we've celebrated has another interpretation.
Teal'c.
Atlantis.
Destiny.
Earth.
We've been reopening the doors.
And something noticed.
That launches the SG-1 movie:
STARGATE SG-1: THE LAST CHEVRON
Not nostalgia.
The surviving SG-1 generation and the Langaran generation have to solve something neither can solve independently.
And Jonas finally gets his Daniel scene.
Not enormous.
Not sentimental overload.
Just Daniel seeing that battered Notebook.
He opens it.
Finds the Meridian page.
Reads the Langaran sentence we've been seeing in the title sequence for six years.
Daniel asks:
"What does this say?"
Jonas:
"You really never learned Kelownan?"
Daniel smiles.
"Apparently I was busy."
Jonas translates it:
"He gave us tomorrow."
And closes the book.
That is the end of Jonas Quinn's arc.
Not death.
Completion.