This ep can perhaps be subtitled: What Happens When John Screws Up (again).
The ep is told in episodes, Sarah's story, Cameron's, etc. But I'm going more linear, people :P
As the ep opens, Sarah is working in the garage as John walks Riley to her bike. He bought her a helmet, aww. She says goodbye and John, all proud, tells Sarah that and she asks if it will protect her from bullets. heh.
He stalks off and Cameron tells Sarah that she'll go talk to him. This involves taking off her jacket so John can see her bra through the wifebeater. Cameron, you're very sneaky.
She comes in and lies with John on his bed. (and yes, the Jameron shippers were NUTS for this. *makes sign of the cross at them*)
Cameron tells him that she knows that being John Connor is lonely. That doesn't sit well.
When she leaves, he grabs a bag he'd already packed and ran out the back door. Turns out he's taking Riley to Mexico. Good plan, John.
The next morning, as Sarah is putting in a safe, Cromartie arrives, having gotten the address from the kid Sarah had left alive in the bowling alley. They find that John's gone, he throws Sarah in his car and takes off.
John and Riley are on the bus and there's witty banter about rape whistles and getting to know each other and booking the honeymoon suite and stuff. awww.
But the scene switches to the supply room where Cameron is restocking and Derek is counting and Derek gets the distress call from John. He's in trouble. They go running.
It turns out that a photo scam in a restaurant leads to a scuffle, which leads John and Riley to be arrested. Yeah, bad news.
In calling home, he finds out that Cromartie's got his mom. Doh.
But it's not just Derek, Cameron, Cromartie and Sarah who are on their way, oh no. Ellison gets a call about the "Cold case" of the Connors from 1999. So off he goes to Mexico too.
When he gets there, he explains why he's there to the sheriff. But ruh-roh. Look who's also arrived.
John and Riley barely get away with Ellison's help, so that's how they find Sarah in the trunk. They call Derek who's already arrived.
He and Cameron canvass the jail and for once, Cameron looks worried that she can't let anything happen to John. Interesting.
Ellison and Sarah meet again, under slightly better circumstances from when they'd 'met' before -- ie, when Sarah saved Ellison's life in season 1. It doesn't go well, though and Riley is told to go far away. But she doesn't want to run from John.
Cromartie's looking for John. He sees Ellison, who finally fulfills his prophecy about leading Cromartie to the Connors. Except it's into an ambush.
Sarah and Derek shoot tons of bullets into him, then Cameron comes in with some kind of rifle that can blow chunks out of him.
John gets the final shot.
Buh-bye Cromartie. We'll... see you soon.
As Derek, Cameron and John bury Cromartie, Sarah and Ellison talk again. He tells her what he's lost and she tells him that this is all she does.
But in destroying Cromartie's chip, she breaks down.
Who comes to hold her?
John.
FINALLY, they hug as she cries hysterically.
John has to look out for her.
So, all's well that ends well?
This is Sarah Connor. Not by a long shot.