Eric McIntire

The evidence adds up. Trey is likely to do time for drug violations. But Sandy, Ryan and Marissa know he's innocent and develop a plan to catch the real culprit in the act. Seth meets a marketing...genius.

Marissa throws a birthday party for Trey - an event that may or may not smooth things between the two Atwood brothers. Julie gets cozy with Lance, her long-ago lover and recent extortionist.

Sex games, secrets and shoelaces all come into play as the couples of Tree Hill celebrate Valentine's Day.

As Nathan, Julian and Clay coach Jamie's first Little League game, the situation regarding the accident comes to a head. Meanwhile, Chase asks Alex to take a drug test for him, and Quinn gets an offer to shoot in Puerto Rico.

As Haley's due date approaches, she takes steps to ensure that her friends and family will be ready when the time comes. Brooke and Julian also prepare to begin a family, while Chuck turns to Chase for help with a problem.

As the girls plan a surprise baby shower for Haley, the guys participate in tryouts for Jamie's baseball team.