The Best Episodes Directed By Clark Mathis

After a streak of bad luck, the team holds a "Lock-In Party" at the Goat House to build team camaraderie at which Alex and Thad divide the rest of the players into two groups and compete in a drug-fueled Team Building Olympics.

When Alex has sex with a lacrosse player's girlfriend, he unwittingly breaks a 23-year football/lacrosse team truce, causing a take-no-prisoners war which he must figure out how to end.

The father of Alex's date becomes fixated on him while Sammy contends with his own daddy issues.

Alex takes on Thad's persona as he struggles to pull Thad out of a post-suspension slump while Sammy meets the perfect girl only to realize he will soon lose her.

Mike Fukanaga is an awkward high school student who discovers that he comes from a long line of ninjas; Mike becomes the leader of a team of crime fighters.

As Lucas sets out on his book tour, he runs into a person from his past. Nathan finally gets a chance to prove himself on the court, but begins to question his health as he does so. Meanwhile, Haley reaches out to a student; Brooke debates a life-changing decision; and Peyton confronts Mick over his true identity.

After the campus is vacated, Thad goes on a vision quest to help him decide between staying at BMS next year and going pro.

A villain escapes from prison and intentionally gets caught in order to be reunited with his motorcycle gang in another prison.

After some of Portland's homeless youth go missing, Nick discovers a black market supplying the Grimm world with human organs. As the investigation continues, Nick and Juliette befriend a pair of homeless siblings, Hanson and Gracie, whose friends have gone missing.

Nick is called to a suspected arson case, which exposes a longstanding family feud that brings Monroe face-to-face with characters from his troubled past. While Monroe wrestles with restraining his wild side, it's up to Nick to keep everything from going up in flames.

When Nick brings Trubel on a ride along with Hank, they end up investigating the murder of a young woman; Adalind is hopeful after making a discovery.

While Alex adjusts to becoming the starting quarterback and team captain, Thad awaits word on his future with the team after his drug related arrest following BMS' loss in last season's championship game. In the meantime, Sammy attempts to move into the Goat House and Mary Jo begins her try-sexual journey.

Brooke runs into someone from her past while on a trip to New York with the Tric bartender, Owen. Nathan and Lucas attend Dan's hearing while they try to protect Jamie from him. Mia gets an offer from a major record label and in the meantime, Haley and Nathan's marriage is on the rocks.

Emily convinces Teddy to enter what she thinks is a game-changing invention into the Wayne Innovation contest against the elitist engineers of Wayne X, even though he has his doubts. Meanwhile, Van takes advantage of Ron's good nature and has him assemble a toy in hopes of preoccupying his new girlfriend's child.

A year has passed since Lucas and Peyton left Tree Hill, and the Tree Hill gang move forward after achieving their goals. Nathan has completed his first year in the NBA, Haley has taken over Red Bedroom Records, and Brooke continues to run Clothes Over Bro's while moving forward in her relationship with Julian.