[s4e25] Episode #4.25 -

This is the first half of a two-part season finale involving a prolific serial killer.

Because many series have an "Episode #4.25" or "S4E25," the specific write-up depends on the show you are following. Below are summaries for the most popular shows with this episode designation: [S4E25] Episode #4.25

: The BAU investigates a series of disappearances in Detroit after an Iraq War veteran, William Hightower, crashes the Canadian border to force an investigation into his sister's disappearance. This is the first half of a two-part

: Timmy and Zeta go on their first date and agree to be exclusive, while Sydney continues to struggle with her feelings for Isaiah. [S4E25] Episode #4.25