The BEST episodes of Lost (2021)

Every episode of Lost (2021) ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Lost (2021)!

The story of a 40-year-old ghostwriter who feels like she has accomplished nothing and a 27-year-old man who is scared that he will achieve nothing with his life.

Last Updated: 3/30/2025Network: JTBCStatus: Ended
Forbidden Feelings
star
8.00
9 votes

#1 - Forbidden Feelings

Season 1 - Episode 11 - Aired 10/9/2021

Min-jung and Tak stay at Kang-jae's place. Jung-soo attends the funeral ceremony for Kyung-eun's husband. When Kang-jae arrives to sign Boo-jung out of police custody, the two end up stranded out of town and spend the night wondering before deciding on an unlikely destination.

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Period
star
7.90
10 votes

#2 - Period

Season 1 - Episode 15 - Aired 10/23/2021

Lee Boo-jung and Jung-soo find themselves in situations that test the strength of their marriage. Meanwhile, Chang-sook gets lost in an unfamiliar part of the city.

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Lost Articles
star
7.80
10 votes

#3 - Lost Articles

Season 1 - Episode 12 - Aired 10/10/2021

After spending all night walking around, Boo-jung and Kang-jae watch the sun rise together before making their way down the mountain to head towards the sea. Tak and Min-jung spend an equally sleepless night hunting for blankets around Seoul.

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A Starry Day
star
7.80
10 votes

#4 - A Starry Day

Season 1 - Episode 16 - Aired 10/24/2021

Finally ready to accept her place in the world and coming to terms with death as a part of life, Boo-jung steps foot onto a new path in life to forge her future as she wishes. Kang-jae decides to move on from the darkness of the past by finally returning Jun-woo's possessions to his family and permanently cutting ties with Jong-hoon. Spring slowly warms into summer.

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Back Where I Was
star
7.78
9 votes

#5 - Back Where I Was

Season 1 - Episode 10 - Aired 10/3/2021

Kang-jae has dinner at his parents' place. Boo-jung worries about her father's escalating dementia. Jong-hoon confronts Kang-jae with the photos he has of him and Boo-jung and threatens him to stop meeting with her. Kang-jae reluctantly accepts. Spring slowly takes over winter.

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Broken Hallelujah
star
7.71
7 votes

#6 - Broken Hallelujah

Season 1 - Episode 7 - Aired 9/25/2021

Kyung-eun reaches out to Sun-joo and they spend the evening reminiscing about the past. Boo-jung and Kang-jae meet per their arrangement. They talk while sharing tangerines, simply keeping each other company. Despite Jong-hoon's enthusiasm to hear about Kang-jae's success with his target, Kang-jae offers him nothing in return.

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A Country of Rage
star
7.67
9 votes

#7 - A Country of Rage

Season 1 - Episode 2 - Aired 9/5/2021

Kang-jae and Tak hold a small funeral ceremony for their friend. Boo-jung visits the police station amongst protests of harsher punishment for cyber-bullying. Her mother-in-law finds out the reason for the police summons and in a panic consults Boo-jung's father. Boo-jung is preoccupied with thoughts of her strange encounter on the bus.

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Lost
star
7.67
9 votes

#8 - Lost

Season 1 - Episode 14 - Aired 10/17/2021

Boo-jung and Ah-ran run into each other at the hospital when she and her husband try to silence the actress and make the assault allegations go away. Kyung-eun and Jung-soo meet again and spend the night together. Ah-ran shows the photos to Boo-jung, leading her to decide her relationship with Kang-jae.

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Nameless Pain
star
7.57
7 votes

#9 - Nameless Pain

Season 1 - Episode 5 - Aired 9/18/2021

Boo-jung reconnects with Kang-jae in the most unlikely of places and learns more about his profession. Jung-soo reflects on his regret for certain mistakes and what if's on his marriage.

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Three People
star
7.57
7 votes

#10 - Three People

Season 1 - Episode 9 - Aired 10/2/2021

Woo-nam's ex-wife shows up at Soon-gyu's pharmacy. Boo-jung goes for a check-up, a year after the incident which triggers bad memories for her. Jung-soo decides to surprise Boo-jung at work and brings her macarons.

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Being Invisible
star
7.56
9 votes

#11 - Being Invisible

Season 1 - Episode 3 - Aired 9/11/2021

An upset Boo-jung once again runs into Kang-jae, this time on the rooftop. Kang-jae calms her down and tells her they should exchange numbers the next time they meet. Jung-soo and Kyung-eun reconnect. Jong-hoon offers Kang-jae a scam job.

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Strangers
star
7.56
9 votes

#12 - Strangers

Season 1 - Episode 13 - Aired 10/16/2021

Kang-jae and Boo-jung reluctantly part ways as Boo-jung returns to Seoul and Kang-jae heads to the seaside. Min-ja and Chang-sook have lunch together and talk about their past. Ji-na is admitted to the hospital due to severe injuries.

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The Right to Be Human
star
7.44
9 votes

#13 - The Right to Be Human

Season 1 - Episode 1 - Aired 9/4/2021

Lee Boo-jung is a forty-year-old home manager living a cold and hopeless life. She receives a summon letter from the police when someone sues her for cyber-bullying. This confuses and shocks her husband whom she is estranged from. Lee Kang-jae is a twenty-seven-year-old man who runs his stand-in escort business. He has been chasing after a friend who borrowed money from him and then disappeared. He then receives news that the friend has been found dead in a lake.

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David and Bathsheda
star
7.43
7 votes

#14 - David and Bathsheda

Season 1 - Episode 8 - Aired 9/26/2021

After a scare at the hospital, Kyung-eun and Jung-soo have dinner together and she shares her fears with him. Boo-jung and Kang-jae once again meet on the rooftop and Boo-jung tells him about her miscarriage. Min-jung tells Tak the story of David, Uriah, and Bathsheba.

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A Woman I Know
star
7.25
8 votes

#15 - A Woman I Know

Season 1 - Episode 6 - Aired 9/19/2021

Kang-jae gets dragged deeper into the shared past between Jung-woo and Boo-jung when he visits Jung-woo's old place and finds his phone. After an anonymous account posts rumors about Ah-ran's past, Boo-jung is encouraged to reach out to an old acquaintance. Her mother-in-law and father find out about the truth.

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Human Friend
star
7.22
9 votes

#16 - Human Friend

Season 1 - Episode 4 - Aired 9/12/2021

Tak and Min-jung worry if Kang-jae has gotten himself mixed into something troublesome. Kang-jae's twenty-seventh birthday arrives. Everyone ends up in the same wedding ceremony complex. Tak runs into his sister who thought he was at the library. Boo-jung is summoned to work when an expensive handbag goes missing.

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