One Tree Hill kicks off its final season tonight with an episode titled "Know This, "We've Noticed."

That's really all the information long-time fans of the series need to know in order to tune in, although they may also be intrigued by the appearance of Brooke's father and the "mysterious problem" - as described by The CW - that arises for Clay and Quinn.

But executive producer Mark Schwahn, who wrote and directed the premiere, has four more words to get you to tune in. What might they be? Find out now:

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