The Unknown Nightmare/Episode 28

"The Headache" is the sixth episode of the third season of The Unknown Nightmare.

Plot Synopsis
As Charlie and Andy try to get the mayor to let the call Joe, Anya groups everyone together to tell them the plan. Charlie is given the result of the test, and Sean and Xander make it to Southfalls, with a familiar face.

Trivia

 * This episode marks the reappearance of the second of four confirmed dead/unknown characters appearing this season.