[s9e1] Know This, We've Noticed →

: Clay begins experiencing strange episodes of sleepwalking, once waking up in a park with no memory of how he got there. Despite Quinn’s pleas for him to seek medical help, he initially remains in denial.

"One Tree Hill" Know This, We've Noticed (TV Episode 2012) - IMDb

: The episode ends on an ominous note with someone watching Haley’s house from the shadows, setting a dark tone for the final season. Production Details & Trivia Original Air Date : 11 January 2012. [S9E1] Know This, We've Noticed

is the premiere episode of the ninth and final season of the drama series One Tree Hill . As the beginning of the end for the series, the story focuses on the characters navigating new roles as parents while being haunted by returning shadows from their past. Story Overview

: James Lafferty (Nathan) and Bethany Joy Lenz (Haley) are the only cast members to appear in every single season premiere of the show. : Clay begins experiencing strange episodes of sleepwalking,

: Chris Keller returns to Tree Hill after a five-year absence to run Red Bedroom Records, immediately clashing with Alex over her music production.

: This episode features the first on-screen appearance of Brooke’s father, Ted Davis. Production Details & Trivia Original Air Date :

: Both Tyler Hilton (Chris Keller) and Paul Johansson (Dan Scott) rejoined the cast as series regulars for this final season.