One Tree Hill - With Tired Eyes, Tired Minds, Tired Souls, We Slept Season 3 Episode 16

Lives hang in the balance when a student brings a gun to school. In the mayhem resulting from the first shot fired, Brooke is able to get out of the school, but leaves Peyton behind. Nathan and Lucas run back into the line of fire to protect Haley and Peyton. There, Peyton reveals her true feelings for Lucas; and Nathan and Haley become trapped with other students and the gunman in the tutor center. When the situation is over, two lie dead and the lives affected will never be the same.