IT: Welcome to Derry (2026) continues to expand the terrifying universe inspired by Stephen King’s It, functioning as a prequel series that dives deep into the dark history of Derry long before the events of the films. Developed by Andy Muschietti and his team, the show builds on the mythology introduced in It (2017) and It Chapter Two (2019), but takes a more layered, investigative approach to horror.

One of the strongest elements of the series is its connection to the larger mythology. The show explores the origins and patterns of “It,” revealing how catastrophic events mark each cycle of its awakening. This gives the story a more investigative and almost historical tone, as characters piece together clues about past tragedies. It feels less like a straightforward horror story and more like a slow-burn unraveling of an ancient evil.

Bill Skarsgård’s return as Pennywise is a major highlight. His performance remains deeply unsettling, blending childlike playfulness with sudden bursts of menace. The series gives him more room to explore different forms and psychological tactics, making the horror feel more personal and unpredictable. Unlike the films, where Pennywise often appears in explosive set-pieces, here the terror is more psychological, creeping into everyday life.

The supporting cast also plays a crucial role. Characters like Leroy Hanlon and his family bring emotional grounding to the story, while the group of children echoes the dynamic of the Losers’ Club without directly replicating it. Their interactions feel more fragmented and realistic, emphasizing isolation and paranoia rather than unity. This shift creates a darker tone, where survival is uncertain and trust is fragile.

Visually, the series stands out with a cinematic quality that rivals the films. The atmosphere of Derry is hauntingly realized, with muted colors, foggy streets, and claustrophobic interiors that enhance the sense of dread. The production design carefully recreates the period setting, while also emphasizing the timeless nature of the evil beneath the town. Each scene feels deliberate, building tension rather than relying solely on jump scares.

However, the pacing can be uneven. Some episodes take a very slow approach, focusing heavily on character development and exposition. While this adds depth, it may test the patience of viewers expecting constant horror. On the other hand, certain plotlines feel slightly underdeveloped due to the large ensemble cast, leaving some characters without satisfying arcs.

Thematically, Welcome to Derry explores fear as a systemic force rather than just an individual experience. It examines how trauma spreads through a community, how silence enables evil, and how history repeats itself when left unexamined. This makes the series more mature and reflective compared to the films, even if it sacrifices some immediacy in the process.