The BEST Episodes of Helix

Every episode ever - ranked by fan votes!

Last Updated: Nov 11, 2019

Network: Syfy

A team of scientists from the Centre for Disease Control travel to a high tech research facility in the Arctic to investigate a possible disease outbreak, only to find themselves pulled into a terrifying life-and-death struggle that holds the key to mankind's salvation...or total annihilation.

Level X

#1 - Level X

Season 1 - Episode 9

The CDC teams learns the real purpose of the infection and Alan and Julia make a perilous journey to retrieve the canister that has the original source virus.

star 7.96
1,335 votes

#2 - Fushigi

Season 1 - Episode 10

In a last ditch effort to find help and a cure, Alan and Julia go to an abandoned satellite station discover a shocking secret that reveals Hatake's ultimate goal and the reason why he has developed the deadly virus.

star 7.94
1,287 votes
The Reaping

#3 - The Reaping

Season 1 - Episode 12

The uninfected are hiding in a secret bunker on the base as the CDC attempt to retrieve the canisters with the virus and the cure while the Ilaria assassins capture Hatake and force him to chose between which one of his children they will kill first.

star 7.89
1,229 votes
Directors: Brad Turner
Writers: Adam Lash, Cori Uchida
Dans L'Ombre

#4 - Dans L'Ombre

Season 1 - Episode 13

Alan and Peter capture the assassin Scythe and demand to know the whereabouts of Julia’s mother. Balleseros confronts Hatake about the missing Inuit children, while Anana and her brother learn of Daniel’s fate. Concerns that the virus is in Ilaria’s possession again forces Alan and the team off the base to search the world in order to retrieve it.

star 7.88
1,247 votes
Directors: Brad Turner
Survivor Zero

#5 - Survivor Zero

Season 1 - Episode 7

As Ilaria CEO Constance Sutton arrives to collect the virus and its cure, Alan finds Walker seemingly symptom-free. Daniel learns the truth about his “adoption” by Hatake.

star 7.87
1,356 votes
Directors: Mike Rohl
Black Rain

#6 - Black Rain

Season 1 - Episode 11

The Vectors start working together to hunt down the uninfected as the CDC develops a risky cure and a band of assassins from Ilaria secretly infiltrate the base.

star 7.86
1,270 votes

#7 - Bloodline

Season 1 - Episode 8

Alan risks his life to save his brother Peter from Ilaria CEO Constance Sutton, only to see him re-captured by Vectors. Julia Walker deals with the mystery of her “cure” while her half-brother Daniel confronts their father, Dr. Hatake, about being abducted as a child.

star 7.85
1,325 votes

#8 - 274

Season 1 - Episode 3

As Alan sets up an isolation unit to quarantine the infected lab workers, Walker and Jordan each face the possibility that they have the deadly virus, too.

star 7.80
1,612 votes

#9 - Aniqatiga

Season 1 - Episode 6

After Daniel leaves Balleseros to die, the mystery surrounding his connection to Hatake (Hiroyuki Sanada) is revealed. As he works to save Peter (Neil Napier), Alan (Billy Campbell) struggles with his feelings for both Walker (Kyra Zagorsky) and Jordan (Jordan Hayes).

star 7.80
1,397 votes
Directors: Mike Rohl
Single Strand

#10 - Single Strand

Season 1 - Episode 4

As Alan risks killing Peter in a desperate effort to cure him, Walker teams with a mysterious young researcher to survive their quarantine. Jordan discovers her Rapid Response test is flawed.

star 7.77
1,506 votes
Directors: Duane Clark
The White Room

#11 - The White Room

Season 1 - Episode 5

As Alan’s controversial cure leaves Peter clinging to life, the unchecked virus forces Jordan to make a devastating decision. Walker discovers the surprising truth about her new ally, while Daniel squares off against Balleseros.

star 7.70
1,420 votes
Directors: Duane Clark
Writers: Cameron Porsandeh, Ronald D. Moore

#12 - Pilot

Season 1 - Episode 1

A Center for Disease Control medical team’s investigation of a disease outbreak at a high tech arctic research lab uncovers the truth about a secretive research project that could threaten the future of humankind.

star 7.68
2,031 votes
Directors: David Slade
Writers: Cameron Porsandeh, Ronald D. Moore

#13 - Vector

Season 1 - Episode 2

As Dr. Alan Farragut accelerates the hunt for his infected brother Peter, the quarantine of three scientists threatens to create panic at the lab. Doreen finds evidence that Dr. Hatake is lying about his research.

star 7.58
1,176 votes
Directors: Brad Turner
Writers: Cameron Porsandeh, Ronald D. Moore
O Brave New World

#14 - O Brave New World

Season 2 - Episode 13

Alan's relationship with Walker reaches a bloody climax, while his sibling feud with Peter erupts in flames. Elsewhere, Kyle does his best to protect a possible cure for the mycosis.

star 7.54
851 votes
Vade in Pace

#15 - Vade in Pace

Season 2 - Episode 8

As the CDC team reels from the devastation at the Abbey, the Coast Guard arrives with news of a new outbreak. Meanwhile, incensed from her imprisonment, Amy takes control of the Abbey, locking Michael in the pit. Jordan, convinced her baby still lives, reveals the truth of the immortals to Kyle in exchange for his help. In the future, Walker's quest for Hatake's missing sword causes her to delve deeper into the Abbey's secrets

star 7.50
805 votes

#16 - Cross-Pollination

Season 2 - Episode 7

As Peter gains a new cellmate, Michael takes extreme action when his followers begin to mutiny.

star 7.41
669 votes

#17 - Oubliette

Season 2 - Episode 5

Michael locks Peter and Alan in a pit. Alan escapes and discovers that Kyle has a secret of his own. Agnes reveals a shocking truth to Michael, who drastically turns on her for doubting him. In the future, Caleb uncovers Walker's deception and takes matters into his own hands.

star 7.40
657 votes
Directors: Grant Harvey
Plan B

#18 - Plan B

Season 2 - Episode 11

Plan B are determined to make sure that the virus and the infected people do not leave the island.

star 7.36
849 votes

#19 - Scion

Season 2 - Episode 3

Peter and Jordan leave the safety of the Abbey to retrieve some specimens and discover just what’s living in the woods, meanwhile Sister Amy plots to make them leave forever.

star 7.35
682 votes
Writers: Allison Miller
The Ascendant

#20 - The Ascendant

Season 2 - Episode 12

Peter finds his purpose as the new leader of Michael's order as the CDC team continues the desperate search for the Mother Tree.

star 7.31
852 votes
M. Domestica

#21 - M. Domestica

Season 2 - Episode 6

Amy creates an outbreak of the disease. Michael torments Peter in the pit. Alan, Jordan and Kyle discover the truth about the Abbey's food chain. An uprising at the Abbey threatens the safety of the uninfected. In present-day Paris, Balleseros meet an unlikely immortal.

star 7.30
658 votes
Directors: Grant Harvey

#22 - Reunion

Season 2 - Episode 2

The CDC team continue to investigate the island; at the same time, they discover Peter's brother, Alan, is a member of Brother Michael's cult, and his warnings for them to leave the abbey fall on deaf ears.

star 7.29
720 votes
Directors: Steven Adelson
Writers: Timothy J. Lea

#23 - Ectogenesis

Season 2 - Episode 9

Alan, Kyle and Winger search the woods for the tree with red sap that might be a cure for the pathogen.

star 7.29
847 votes

#24 - Densho

Season 2 - Episode 4

As Michael struggles to keep the abbey under control, the CDC team moves closer toward tracking the source of the pathogen. Alan fights the urge to rejoin his team and confronts the reality about Peter’s allegiances. In the future, Walker makes a desperate attempt to escape from her delusional father, with potentially deadly consequences.

star 7.27
682 votes

#25 - Mother

Season 2 - Episode 10

The Abbey becomes a house of horrors as Kyle struggles with his infection and Anne begins to shape a successor to Michael.

star 7.23
856 votes