10. The Firefly

An Observer unexpectedly makes contact with the Fringe Team to help rectify a mistake. Meanwhile, Walter befriends Roscoe Joyce, keyboardist for Walter's favorite 1970s band, "Violet Sedan Chair." Walter will learn the real reason the band broke up, and realize that the lives of these two men, who have never met before, overlap in strange and unexpected ways.

Plot summary and ending

Spoilers ahead. Coverage follows the scope labeled below.

Complete story — includes the ending

A series of events leads Walter to befriending musical icon Roscoe Joyce ( Christopher Lloyd ), keyboardist of Walter's favorite band, Violet Sedan Chair. Walter learns through the Observer September that bringing Peter from the parallel universe ultimately, through a long chain of events, led to the end of the band due to the death of Joyce's son. The Fringe team is unaware that September has engineered events in the present to test Walter's resolve to let go of Peter when the time is right.

Sources and content license

Source and revision history · Adapted from Wikipedia contributors, Fringe season 3. HTML formatting and reference markers removed. · Content license