The Tunnel

Lore & Background

In the 1996 timeline, the Tunnel is discovered in the immediate aftermath of the crash, when the girls are lost, injured, and running out of supplies. It offers what the open wilderness cannot: walls, a roof, a sense of enclosure. But that same enclosure becomes a pressure cooker. The girls are forced into a shared space with no privacy, no escape, and the slow realization that they are not alone in the tunnel—whether that 'alone' means another person, an animal, or something the show deliberately leaves unnameable. The Tunnel in 1996 is where alliances fracture, where a girl's worst fear is voiced at 2 a.m. to a stranger who will become her sister, and where the first truly supernatural event lands on them like a physical blow. In the present-day timeline, the Tunnel reappears as a wound in the landscape that should not exist, or should not be where it is. The women who survived the crash are now adults carrying invisible scars, and the Tunnel becomes the place where those scars are pried open. Evidence left behind in 1996—objects, marks, the residue of whatever happened in that dark—surfaces in the present, forcing the characters to confront the gap between what they remember and what actually occurred. The Tunnel does not simply connect the two timelines; it interrogates them, asking which version of the story is the true one. Thematically, the Tunnel operates as a collective unconscious given geology. It is the space where the Yellowjackets' identity as a unit is forged and, in the present, where it is tested. The show uses the Tunnel to argue that trauma is not a single event but a corridor you walk back down every time you think you've reached the end.

Reader's Guide

SEASON 1 — 1996 (wilderness): The inciting incident is the plane crash and the team's desperate search for shelter. The Tunnel is found and becomes their base. The key twist is the first unexplained, supernatural event inside the passage, which recontextualizes the crash from an accident into something that may have been drawn or chosen. The audience learns about this timeline first, in real time, with no present-day anchor yet. SEASON 1 — Present-day: The inciting incident is the resurfacing of the crash as a cold case. The Tunnel is referenced or its entrance is located. The key twist is the realization that the survivors' memories of the Tunnel do not align, implying the space holds more than they remember. This recontextualizes the 1996 events as unreliable, filtered through grief and dissociation. SEASON 2 — Both timelines: The inciting incident is the direct intersection of the two timelines through the Tunnel. The key twist is that the Tunnel is not merely a location but an active, almost sentient threshold. Earlier events in both timelines are recontextualized as symptoms of the Tunnel's influence rather than isolated incidents. SEASON 3 — Both timelines: The inciting incident is the full revelation of what the Tunnel is and what it has been doing to the girls across decades. The key twist recontextualizes the entire series: the Tunnel is the origin point, not the endpoint, of every mystery the audience has followed. The 1996 and present-day stories collapse into a single, continuous wound.

Did You Know?

• The dual-timeline structure means the Tunnel is experienced twice by the audience—first as a 1996 survival space, then as a present-day mystery site—so the same walls carry two different emotional weights.
• The show deliberately keeps the Tunnel's supernatural properties ambiguous, allowing it to read as a psychological space, a literal otherworldly threshold, or both simultaneously, depending on the viewer.
• The Tunnel's claustrophobic framing—tight camera work, limited light, overlapping voices—contrasts sharply with the open wilderness shots, making it the show's visual and emotional counterweight.