When a body is found on the bridge connecting El Paso and Juarez, two detectives, one from the United States and one from Mexico, must work together to hunt down a serial killer operating on both sides of the border.

Marco and Sonya investigate the body from the bridge. Frye learns that the Killer isn't done with him. Charlotte makes an unwelcome discovery on her property.

Marco reconnects with a friend from his past and races to save his family. Charlotte responds to her biggest threat. Linder reveals his true feelings.

Showdown on the bridge as the Killer reveals his endgame.

Sonya and Marco search for a missing girl. Charlotte meets someone who knows too much about her new business venture. Marco makes a decision that could change everything.

Sonya meets a man connected to her past as Marco discovers he is no longer safe in his own department. Frye & Adriana investigate the origins of the "money house." A mysterious woman crosses The Bridge into El Paso.

Sonya visits a stranger from her past while Marco’s tainted history is unearthed. Frye takes a step too far. Eleanor’s loyalties are tested. A move is made to apprehend Fausto.

Marco’s loyalty is put to the ultimate test. Sonya attempts to tie up loose ends. Eleanor yearns for closure. Frye and Adriana land an insider source.