The BEST Episodes of Frequency

Every episode ever - ranked by fan votes!

Last Updated: Dec 5, 2021

Network: The CW

A female police detective in 2016 discovers she is able to speak via a ham radio with her father (also a detective) who died in 1996. They forge a new relationship while working together on an unresolved murder case, but unintended consequences of the ‘butterfly effect’ wreak havoc in the present day.

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Signal Loss

#1 - Signal Loss

Season 1 - Episode 13 - Aired Jan 25, 2017

Raimy makes a discovery that stops her cold. She quickly reaches out to Frank on the ham and voices her concerns. Meanwhile, truths are revealed.

star 7.97
1,351 votes
Directors: Thomas Wright
Writers: Jeremy Carver, Nancy Won

#2 - Pilot

Season 1 - Episode 1 - Aired Oct 5, 2016

When Detective Raimy Sullivan discovers that she can communicate with her deceased father on an old ham radio, she warns him of events that will lead to his death so he can circumvent his fate.

star 7.93
2,953 votes
Directors: Brad Anderson
Writers: Jeremy Carver, Toby Emmerich

#3 - Harmonic

Season 1 - Episode 12 - Aired Jan 18, 2017

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

star 7.79
1,345 votes
Writers: Jeannine Renshaw
Bleed Over

#4 - Bleed Over

Season 1 - Episode 4 - Aired Oct 26, 2016

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. Meanwhile, Raimy meets Kyle who immediately remembers her from a brief encounter in the past. She doesn’t recognize him at first, but flashes of their night together come rushing back to her.

star 7.77
2,017 votes
Directors: Michael Fields
Writers: Michael Alaimo
Gray Line

#5 - Gray Line

Season 1 - Episode 9 - Aired Dec 7, 2016

Raimy and Frank make a startling discovery about the Nightingale killer. Meanwhile, Frank is blindsided by a shocking betrayal.

star 7.74
1,618 votes
Writers: Nancy Won
The Near-Far Problem

#6 - The Near-Far Problem

Season 1 - Episode 3 - Aired Oct 19, 2016

When Raimy uncovers evidence in the Thomas Goff case, she relays this information to Frank over the ham radio, which prompts him to take matters into his own hands while ignoring a strong warning from Satch. Meanwhile, Gordo talks Raimy into going out for a drink where she has an interesting encounter with Daniel who still considers her a complete stranger and possible stalker. Lastly, Raimy struggles to adapt to life without Julie, and Frank tries to adapt to life with her.

star 7.74
2,213 votes
Writers: Nancy Won
Signal and Noise

#7 - Signal and Noise

Season 1 - Episode 2 - Aired Oct 12, 2016

Raimy tells Frank, over the ham radio, that her mom will be murdered unless he can find a way to warn her; Frank gets bad news about Stan Moreno; Raimy follows a lead in the Nightingale case, while Frank and Satch follow the same lead in 1996.

star 7.73
2,412 votes
Writers: Jeremy Carver

#8 - Deviation

Season 1 - Episode 6 - Aired Nov 9, 2016

In 2016, Raimy meets a strange character named Karl, who speaks to himself in the future. In 1996, Frank feels like he's being taunted by the Nightingale. Meanwhile, having discovered new information, Raimy and Frank set up a plan to use the Nightingale's next victim as bait.

star 7.70
1,813 votes
Writers: Jeannine Renshaw
Negative Copy

#9 - Negative Copy

Season 1 - Episode 11 - Aired Jan 11, 2017

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

star 7.68
1,397 votes
Directors: John Behring
Writers: Michael Alaimo

#10 - Interference

Season 1 - Episode 8 - Aired Nov 30, 2016

Raimy and Satch discover a shocking connection to the Nightingale’s first kill. When Raimy shares this news with Frank, he works to dig up additional information. Meanwhile, Frank and Julie are forced to have an honest conversation, and Raimy has a surprise visitor.

star 7.64
1,578 votes
Writers: Tom Farrell
The Edison Effect

#11 - The Edison Effect

Season 1 - Episode 10 - Aired Jan 4, 2017

Frank and Raimy put a plan in motion for Frank to kill the Nightingale. Frank finds himself agonizing over whether it's the right thing to do, and Raimy is confronted with an unexpected moral decision.

star 7.62
1,504 votes
Directors: Rob Seidenglanz
Writers: John Dove
Break, Break, Break

#12 - Break, Break, Break

Season 1 - Episode 7 - Aired Nov 16, 2016

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.

star 7.58
1,710 votes
Directors: Tim Hunter
Writers: Linda Patel
Seven Three

#13 - Seven Three

Season 1 - Episode 5 - Aired Nov 2, 2016

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. Through Frank, Raimy continues to learn more about Stan which begins to cause friction with Satch. Meanwhile, Frank has trouble controlling his jealousy as he struggles to give Julie her space.

star 7.58
1,925 votes
Directors: Oz Scott
Writers: John Dove