It's Sam calling to tell him the library search was a bust. In turn, Dean tells him about his interviews with the eyewitnesses, making very sure to point out how hot the girls were. Heterosexuality: reaffirmed! Sam gets the feeling he's being followed, which he tells Dean via code. (He has something stuck to his shoe.) They set up a rendezvous at the parking lot.
Darkness sure does come quickly on this show. In the 30 minutes it takes to meet up, broad daylight has turned to night. While Sam pretends to fumble with his keys near the Impala, Dean confronts someone lurking in the bushes. "Hey, pal," Dean says. The lurker stands up to his full height. It's the giant from 1944. Dean has to tilt his head way, way back just to look at him. This would have been funnier if it had been Sam who first encountered him, don't you think? The giant hurls Dean a good 20 feet into a parked car. The force of the impact crumples metal and smashes the windows. Dean should have the consistency of a tube of anchovy paste after such a trauma, but you know he won't even have a bruise. Sam is surprised to see his brother vaulting through the air and even more surprised when the giant clomps out of the shadows towards him. He whacks at the giant's arm with a knife, but it's like slicing into rubber. The giant grabs Sam by the throat and lifts him off the ground.
"Stop," a voice says behind them. It's the fella who came a-courtin' Dean at the bar. The giant drops Sam. "What... the hell... is that?" Sam asks, looking petite for the first time since puberty. "He's a golem," the newcomer says, then clarifies, "He's my golem." He doesn't sound proud or sinister when saying this, but rather a bit tired.