Character Relationship Map: Greenland 2: Migration

Characters

• John Garrity (played by Gerard Butler) — protagonist

  Structural engineer and family protector who survives the comet impact and leads his family across a devastated Earth.

• Allison Garrity (played by Morena Baccarin) — protagonist

  John's estranged wife who reunites with him and becomes a resilient community leader in the post-apocalyptic world.

• Nathan Garrity (played by Roman Griffin Davis) — supporting

  Teenage son with diabetes whose medical needs and desire to become a scout drive much of the family's journey.

• Dr Casey Amina (played by Amber Rose Revah) — supporting

  Medical professional who travels with the family, providing critical care until her tragic death en route.

Canonical Relationships

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

• Allison Garrity → Nathan Garrity (Family Mother)
• John Garrity → Nathan Garrity (Family Father)
• John Garrity → Allison Garrity (Family Spouse)

Story Dynamics

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

• Nathan Garrity → Dr Casey Amina (Alliance Companion)
• Allison Garrity → Dr Casey Amina (Alliance Ally)
• John Garrity → Dr Casey Amina (Alliance Ally)

Story Analysis

A devastated family crosses a collapsing post-impact world in search of a habitable future, reaching safety at a profound personal cost.

Plot Progression

1. The Bunker Falls
2. Across a Broken Britain
3. The Cost of Survival
4. The French Passage
5. A Valley Beyond Ash