During pre-Dominion war tensions, Bashir is kidnapped (sometime before "," when new uniforms are introduced) and sent to a Dominion prison camp and replaced with a Changeling (revealed during "In Purgatory's Shadow"). His replacement attempts to destroy the Bajoran sun, with the goal of wiping out Bajor, DS9, and a fleet of Federation, Klingon, and Romulan ships ("By Inferno's Light"). The DS9 crew foil the plan, and the real Bashir, along with his fellow captives, shortly thereafter free themselves. The experience (and his outing as a genetically engineered person) began a slow personality change over the course of the series into a much more somber, dark character.