Fringe (2008)

S2E17 Olivia. In the Lab. With the Revolver.

A seemingly healthy woman succumbs to a swift and aggressive form of cancer within minutes, prompting the Fringe team to step in and uncover the truth. The investigation reveals ties to Jacksonville, putting Olivia in the crosshairs as a potential target. Amid the chaos, Olivia grapples with her understanding of Peter's true origins, complicating her emotional journey.