The dork with the cool curvy knife is Sam (Jared Padalecki), the cool guy with the gun would be Dean 'Awesome' Winchester (Jensen Ackles).
Supernatural, Season One: The Beginning (mwahahaaaaa)
Right, so we start off with this lovely domestic scene, a mother, father, and an older brother putting baby to bed. So cute! So adorable! Pinch his little cheeks!
And then it all goes horribly wrong!
Mom (Mary Winchester), thinks she hears something, and heads into the baby's (Sam) room to check. She pokes her head in, sees a man standing over his crib, and assumes that it's her husband (John). She turns to head back to bed, and on the way realizes that John has fallen asleep in the living room watching tv.
She, of course, rushes back up to Sam's room, and, well. Mary winds up dead on the ceiling. Yes, the ceiling. And then the house bursts into flames. Or, well, not quite. What happens is John wakes up (he heard something), goes looking, walks into Sam's room, and sees blood dripping into Sam's crib. He looks up, sees Mary on the ceiling (pinned like the worlds most horrible butterfly) and *then* *she* bursts into flames, which catches the house on fire. John hands Sam to his big brother (Dean, who's four) and tells him to get his brother out of the house, while John tries to save Mary. Clearly, since she was gutted, *on the ceiling*, and then *on fire*, this is futile, but John *really, really* loves Mary, so he tries.
And their house burns down. This was...November 2, 1983, All Souls Day.
John, obsessed with finding out what the hell just happened, winds up going to a psychic, who tells him that a demon killed his wife. This becomes John's new purpose in life: hunting and killing supernatural things, all the while searching for the demon that murdered his wife. Look, John is at no point going to win 'Father of the Year' awards, because he hauls his kids all over the country, in the back of his Impala (Metallicar!) hunting things that hunt back, and training them to do the same. The Winchester family is *special*, and not in a good way, but they're *family*, and they work, to an extent.
They go on this way until Sam hits college age, at which point he rebels, and leaves to have a normal life. Which he succeeds at, mostly. Of course this is all covered throughout the season, and with flashbacks, etc. The first ep. jumps from 'house burning down' to Sam in college, being a dork.
One night, Dean shows up. Their fathers gone missing, and he wants Sam to come help him find him. Sam does agree, and off they go. They track John to his last 'case/hunt', and take care of the ghost, but no sign of John. Sam insists that he needs to get back to his life, and Dean takes him back to college.
Where he finds his girlfriend gutted, pinned to the ceiling and then bursting into flames.
Sammy's luck sort of sucks, yes?
Dean rescues his brother from the burning building (AGAIN) and now Sam's all gung-ho for the 'family business' because the demon is a jerk who is making certain that Sam's going to need therapy for years! And, also, you know, *demon*.
So, the first season follows the boys looking for their father, and hunting other monsters and ghouls along the way. And I brush over it, but the individual stories for each ep are great! And they do a lot of traditional folk tales and such. Bloody Mary, the Woman in White, Windigo, all that sort of stuff.
They do, eventually, find John, and discover that he's figured out how to track the demon (Yellow Eyed Demon - YED for short), and *also*, and more importantly, how to kill him.
The Colt. Which is a special gun made by Samuel Colt, during the Battle of the Alamo and at the time of Halley's Comet. This gun can kill *anything*, even demons, which ordinarily can't be killed, just kicked back to hell, where they can come back from.
Due to circumstances out of their control (except where there was *stupid* involved, and mostly I'm looking at you, Sam), and the fact that, again, *demons*, plural, and YED being, well, YED, and clever and evil, the Winchester's are captured, and the YED possesses John and tortures Dean, and then Sam kneecaps him with the Colt, which drives YED out, but fails to kill him, because Sam would have had to kill John to do it.
And then in their rush to get to the hospital, what with the torture and the bullet wounds and all, a semi being driven by a demon smashes them. Leaving them even *worse* off than they were, plus, THEY SMASHED THE IMPALA! The Impala is the fourth Winchester, and *integral* to all the plots. All of them.
Season 6 starts this Friday, so we'll get a season a day! *twitches in gleeful anticipation*