A good pilot:
1. Introduces characters we can identify with in some way.
Sam and Dean are brothers who have been on the outs. They spend most of the pilot episode arguing. But there's an underlying core of affection and connection. I was completely sold near the beginning, when someone snuck into Sam's apartment and they fought in silhouette. That one sequence summed up their entire relationship: sometimes contentious, evenly matched, with one on top, then the other. Dean was the teacher and protector, while Sam was the student who'd at least reached his master's level.
2. Has a complete episode arc that tells exactly what the series will be.
The "Woman in White" urban legend tells us everything we can expect from a typical Supernatural episode. The creepy image stuttering and cinematography tell us it will be scary (as does, of course, the death scenes!). The pathos of the ghost's backstory tells us this isn't like a crime show that focuses on facts and clues but not so much on people and character. The ghost's motivation is sad, and I even felt pity for the husband who started the whole long chain of events.
We get humor ("Bitch." "Jerk." and "Is anything real about you, boy?" "My boobs.") and fake rock IDs and action and mystery.
3. Asks story questions that make us want to tune in next week, and the week after, and...
Not all good shows have a major story arc, but most do. If they don't, viewers know right away that the show will get stale and repetitive, and that can make us decide not to bother investing time and care into watching now.
But Supernatural easily avoided that fate. First, there's the catalyst that launches the events: Dad's on a job, and he hasn't been home in a while. Where is he? What will the boys find when they catch up with him? Then the neatly bookended mystery--whatever killed Mom has now killed Jessica, and the reluctant hero accepts the call to adventure. We've got to know what it was, and why it did it.
There's a danger in setting up a long-term mystery, too, because if it drags on too long without answers, viewers will also get bored and tune out. But at the start, we're full of anticipation and curiosity and we'll eagerly sign up for the ride.
4. Just enough backstory, but not too much.
All fiction has this balance to maintain, and it's always a struggle. We know Sam and his father have a contentious relationship. We know they had a very unconventional upbringing, that the brothers are closer than most because of it, despite their current rift, and that their mother's death drives everything they do, every choice they make. We know these things from several short lines and one powerful prologue, but the emphasis of the show is on the future. There isn't a chance to get bored.
What else did this pilot have? Obviously, two very attractive young men who are going to be the centerpiece of the show. A definite tone that's set in the colors, the lighting, the set dressing, the broad cinematography, even the shot angles. Hints at the depths they could plumb: Sam left the hunting life a long time ago, professes to hate it, but he has a wickedly curved knife all ready to pack. Dad had a journal full of notes on things he'd hunted, and a system of communication the boys can follow with little guidance.
Like anything, the episode wasn't perfect. How did Dean get to the farmhouse from the police station? And later, why did he return to Sam's apartment? His timing is just a little too coincidental. Of course, a deleted scene on the DVD shows him driving away and changing his mind, one quick shot showing us that he's not accepting Sam's decision as he turns the car around. But we didn't get that originally. Still, those small errors or oversights aren't enough to override all the good in this pilot. It made me really happy that I was a late starter and could watch as many episodes in a row as I wanted!
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Your turn! Post your favorite lines or details from the pilot, or tell us what your first impression of this episode was. Did it hook you right away, or grow on you? Did you see the pilot first, or start watching on TV later in the show's run, and go back?
Screencaps from Supernatural Fan Wiki and Supernatural Caps.