Clarke's Faction

Lore & Background

The 100 were sent to a supposedly dead Earth as a last gamble for humanity's survival. When they discovered the surface was not only viable but already inhabited by the Grounders, the fragile social order of the Ark shattered. Clarke Griffin, a surgical trainee with no prior claim to authority, was thrust into leadership by circumstance and by the sheer refusal to let others die on her watch. The people who stayed with her—those who chose to remain on the surface rather than return to the Ark's cold corridors—formed the earliest seed of what fans now call Clarke's Faction.

As the series progressed, Clarke's identity deepened. The revelation that she was a Nightblood, a lineage of warriors who had once ruled the surface, transformed her from an outsider among the Grounders into someone with a claimed heritage. Skaikru, the tribe that followed her, became a living symbol of her leadership: a group defined less by geography and more by loyalty to the person who had bled for them. In later seasons, as threats escalated from the Mountain Men to the Nightbloods to the broader conflict between the Ark and the surface, Clarke's Faction repeatedly reorganized, absorbing new allies and losing old ones, but never fully dissolving.

The faction's ideology crystallized around a few principles that contrasted sharply with the Ark's technocratic rule: that leadership is a burden, not a privilege; that the surface belongs to those who tend it; and that the old hierarchies of the space station are no longer fit to govern a people who have learned to live in the dirt and the rain. Clarke's Faction, in the eyes of its members, was proof that a new social contract was possible.

Reader's Guide

Clarke's Faction has no single founding moment; it emerges organically in Season 1 when a subset of the 100 chooses to stay on the surface and aligns with the Grounder tribes rather than returning to the Ark. Clarke Griffin, a surgical trainee with no formal rank, becomes its de facto leader through a series of crises that demand someone to make impossible calls. The leadership hierarchy is informal: Clarke at the apex, with Octavia Blake, Lincoln, Raven, and Monty serving as close advisors and warriors. There is no written constitution; authority is maintained through demonstrated competence and personal sacrifice.

Ideologically, the faction rejects the Ark's status-based hierarchy and the Grounders' rigid tribal codes. It favors pragmatism, mutual aid, and the idea that the surface is a shared inheritance. Territory is fluid—Skaikru operates from a base camp in the mid-Atlantic region but is not bound to a single valley. Relationships with other groups (the Ark government, the Mountain Men, the Nightbloods, other Grounder tribes) shift from alliance to conflict to uneasy truce across the seasons.

The faction evolves dramatically. In early seasons it is a small band of 100 survivors and a handful of Grounders. By mid-series it has grown into a recognized tribe (Skaikru) with its own identity and territory. In later seasons, as Clarke's Nightblood heritage is revealed, the group absorbs elements of the Nightblood warrior culture and becomes entangled in a broader inter-tribal and Ark-surface conflict. Internal politics surface around questions of who Clarke answers to, whether the faction should engage the Ark or remain independent, and how to handle members who defect or betray the group. The faction never formally dissolves; it simply keeps changing shape, which is arguably its defining characteristic.

Did You Know?

• Skaikru, the tribe most closely associated with Clarke, takes its name from the Grounder word for 'sky,' marking them as the tribe of the Sky People.
• Clarke's Nightblood heritage, revealed in Season 5, retroactively reframed her relationship with the Grounders from outsider to a claimed lineage of surface warriors.
• Clarke's surgical training on the Ark made her one of the few members of the 100 capable of performing complex medical procedures on the surface, a skill that repeatedly cemented her authority among the Grounders.
• The faction's membership is deliberately fluid—characters join, leave, and rejoin across seasons, reflecting the show's theme that loyalty in a survival context is a choice made daily, not a status held permanently.