Character Relationship Map: Helix

Characters

• Dr. Alan Farragut (played by Billy Campbell) — protagonist

  A CDC investigator who leads the response to the viral outbreak at the Arctic bioresearch station. He works with Dr. Sarah Jordan to investigate the infection, survives the station's collapse, and lat...

• Dr. Sarah Jordan (played by Jordan Hayes) — supporting

  A CDC researcher who joins Dr. Alan Farragut in investigating the viral outbreak at the Arctic station. She is part of the scientific team confronting the infection, the quarantine crisis, and the pos...

• Sister Amy (played by Alison Louder) — minor
• Brother Michael (played by Steven Weber) — minor

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Sister Amy → Brother Michael (Follower and Abbey leader) — Amy operates within Michael's religious power structure but also acts independently and contributes to the Abbey's instability.

  "Michael leads the Abbey, while Amy plots to make Peter and Jordan leave, creates an outbreak, and later contends with Michael and his plans."

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Dr. Alan Farragut → Dr. Sarah Jordan (Outbreak-response partners) — Their alliance is repeatedly renewed by the need to protect uninfected people and understand the pathogen.

  "Alan and Jordan jointly face quarantine risks in Season 1, contribute to the cure effort, and investigate the pathogen and its source in Season 2."

• Dr. Alan Farragut → Brother Michael (Opposing investigators and captor) — Alan represents scientific containment and rescue, while Michael controls the isolated community and obstructs the CDC investigation.

  "In Season 2, Michael leads the Abbey and locks Alan in a pit while the CDC team investigates the pathogen and the Abbey's food chain."

• Dr. Sarah Jordan → Brother Michael (CDC investigator and cult leader) — Sarah's medical investigation conflicts with Michael's authority over the Abbey and its dangerous practices.

  "Michael controls the Abbey while the CDC team tracks the pathogen. The Season 2 finale states that Kyle rescues Sarah Jordan, confirming that she is...

• Dr. Alan Farragut → Sister Amy (Investigator and outbreak instigator) — Alan's containment mission directly opposes Amy's decision to create an outbreak within the Abbey.

  "In Season 2, Amy creates an outbreak of the disease while Alan, Jordan, and Kyle investigate the Abbey and search for a cure."

• Dr. Sarah Jordan → Sister Amy (Medical investigator and outbreak instigator) — Sarah's medical mission to contain the pathogen is incompatible with Amy's deliberate creation of an outbreak.

  "Amy creates an outbreak, while Sarah is part of the CDC team responding to the pathogen and is later rescued during the Season 2 finale."

• Sister Amy → Dr. Sarah Jordan (Abbey antagonist and CDC target) — Their relationship links the Abbey's internal power struggle with the CDC team's survival plot.

  "Amy's actions affect Jordan directly through the Abbey's attempted expulsion, the disease outbreak, and the later crisis in which Jordan must be resc...

Story Analysis

The series follows a pathogen investigation that expands from laboratory quarantine into a global and island-based struggle over infection, containment, authority, and survival.

Plot Progression

1. Season 1: Quarantine Crisis — The CDC team confronts a rapidly spreading infection inside Arctic Biosystems. Failed testing and dangerous treatment attempts turn scientific investigation into a survival crisis.
2. Season 1: Source Revelation — The investigation expands from infected workers to the purpose and origin of the pathogen. Alan and Sarah pursue the source virus while infected groups and outside forces compete for control.
3. Season 1: Global Fallout — The uninfected hide as the CDC struggles to secure the virus and cure. The failure to guarantee containment forces the team into a wider search beyond the base.
4. Season 2: The Abbey — A new outbreak leads the CDC team to an island controlled by Michael's cult. The Abbey presents both a possible source of knowledge and a closed society governed by coercion.
5. Season 2: Island Collapse — Amy's outbreak, Michael's violence, and an uprising destroy the Abbey's fragile order. The search for red sap and the threat of a military final solution push the survivors toward a desperate climax.