Frequency

When Raimy warns Frank that her mom will be murdered unless he can somehow warn her, she also delivers some devastating news about Stan Moreno (ANTHONY RUIVIVAR).

After Raimy uncovers evidence in the Goff case, she relays this information to Frank, prompting him to take matters into his own hands while ignoring a strong warning from Satch.

With the date of Julie's abduction rapidly approaching, Raimy and Frank each work to gather information from a girl whose mother was taken by the Nightingale.

When Frank helps Raimy uncover clues from the past to help solve a present day murder case, it brings up two different memories of her first day in the NYPD.

In 2016, Raimy meets a strange character named Karl (CURTIS ARMSTRONG), who speaks to himself in the future. In 1996, Frank feels like he's being taunted by The Nightingale.

Raimy and Satch's detective work begins to pay off when a cold case victim leads them to their biggest break -- a room where the Nightingale held his first victim.

While Raimy and Satch discover a shocking connection to the Nightingale's first kill, Frank and Julie are forced to have an honest conversation. And Raimy has a surprise visitor.

In the winter finale, Raimy and Frank make a startling discovery about the Nightingale Killer. Meanwhile, Frank is blindsided by a shocking betrayal.

Frank & Raimy plan to kill the Nightingale, but Frank finds himself agonizing over whether it's the right thing to do. And Raimy is confronted with an unexpected moral decision.

Raimy and Frank find themselves in the thick of things. Meanwhile, Frank learns the meaning behind a betrayal.

Raimy and Frank make a huge discovery while continuing their search for the Nightingale killer. Meanwhile, Stan is willing to do anything to bring Frank down.

In the season finale, the truth is revealed and Raimy makes a discovery that stops her cold. She quickly reaches out to Frank on the ham radio to voice her concerns.