If Supernatural were a living, breathing person, said person would be a freshman in high school this fall. Think about that. It could file for its learner's permit in the state of Pennsylvania. It's almost old enough to drive! With so much history under its belt, it's quite understandable that some things might get lost along the way. I can barely keep track of my 2-year-old in a Target, so I get it. But that doesn't make these dead-end and long-forgotten storylines any easier to accept in their unresolved states. And if we never see them surface again before the show ends (it was just renewed for Season 15, FYI), I will take my resentment over these unresolved storylines to my grave.

These are Supernatural's most frustrating loose ends.

Jared Padalecki, Jake Abel and Jensen Ackles, <em>Supernatural</em>Jared Padalecki, Jake Abel and Jensen Ackles, Supernatural

The Other Winchester Brother

We obviously have to start with Adam (Jake Abel). Sam (Jared Padalecki) and Dean's (Jensen Ackles) half-brother wanted nothing to do with their messed up codependent apocalypse thing, but this series has a blood fetish, so it was only a matter of time before he got roped in. We, the fans, have been nagging Supernatural for years to address the lingering Adam issue, and the most we've gotten is a reference to him in the show's 200th episode, "Fan Fiction." However, in Season 11, a sojourn into Lucifer's (Mark Pellegrino) cage also revealed that Adam wasn't there. SO WHERE IS HE? WHERE IS ADAM? Even Jake Abel would like to know:

8 Things Supernatural Probably Wants Us to Forget Happened

Avenging Amy Pond

It's not that I want to relive the abysmally depressing "The Girl Next Door," complete with sad Winchester childhood flashbacks and codependent grown-up Winchesters killing each other's friends, but a promise of revenge is not to be taken lightly on Supernatural, and Amy's son promised.

Jesse the Friendly Neighborhood Antichrist

In Season 5's "I Believe the Children Are Our Future" we met Jesse Turner (Gattlin Griffith), the offspring of a demon and a human who was believed to be Lucifer's right-hand man on Earth when the apocalypse came. At the end of the episode, Jesse Lorax'd himself to who knows where because he's a nice sweet boy and didn't want to use his powers to bring about the end of days. Jesse would have been pretty useful later that season when, you know, the apocalypse happened. Supernatural has been pretending he never existed since, well, right after he was created, but he's still out there, man.

An Ode to Baby, the True Star of Supernatural

Whatever Happened to Sam's Special Demon Powers?

It's a common misconception that no more demon blood means no more special demon powers, but remember, Ruby said that Sam "never needed the feather to fly." The power was always in him. The demon blood was a crutch. I would love for those powers, and that legacy, to reappear in the current storyline of Sam: The Reluctant De Facto King of Hell. Sure, it's plausible that through all the resurrections, possessions, trials and other cosmically and chemically altering experiences that Sam has lost those powers. But that's boring and an offensively unceremonious end to what was one of the driving storylines for at least a third of Supernatural's lifetime, if not the entire reason the story even exists.

Supernatural airs Thursdays at 8/7c on The CW.

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