[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 [S9E1] Know This, We've Noticed

You can find more detailed reviews and episode breakdowns on platforms like IMDb and the One Tree Hill Wiki . : Clay begins experiencing strange episodes of sleepwalking,

: James Lafferty (Nathan) and Bethany Joy Lenz (Haley) are the only cast members to appear in every single season premiere of the show. : James Lafferty (Nathan) and Bethany Joy Lenz

: After his diner burns down, Dan returns to Tree Hill seeking a place to stay. Although hesitant due to his dark history, Haley eventually allows him to stay for a few days, leading to a tense confrontation when Nathan returns home to find Dan holding his daughter, Lydia.

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

: This episode features the first on-screen appearance of Brooke’s father, Ted Davis.