Brian Ames

When Stefan and Damon make a dangerous new enemy, Stefan suddenly finds himself in a perilous situation. Damon and Elena try to convince Alaric to work with them to help Stefan. Matt is hopeful that his mom, Kelly (recurring guest star MELINDA CLARKE), may be back to stay. And, after Caroline's car breaks down in a storm, she makes a horrific discovery that shocks everyone in town.

A gunman open fires at a local college, sending mass casualties to the hospital; Arizona's return is not warmly welcomed.

The CBI team heads out to wrangle suspects in a run-down Wild West tourist town when the owner is found dead. Meanwhile, Kirkland tries to find out how much Patrick knows about Red John.

The lead suspect in an NCIS murder investigation is a woman Gibbs' friend, Phillip Brooks (Don Lake), met on a dating site. Also, Sloane has a secret admirer on Valentine's Day.

Season Four premiere. In an attempt to honor Lisa's last wishes, Nate finds himself at odds with her family. Meanwhile, David and Keith look for 'genuinely new' ways to start over; Federico seeks out a priest for absolution; Vanessa gets tired of Angelica; Brenda does 'the neighbor thing' with Joe; and Ruth sings the praises of her new husband George.