EPISODE

3. Fracture

Peter, Walter, Olivia, and Broyles pursue a strange and deadly occurrence in Philadelphia where a bomb blew up inside a train station but left no trace of any explosive device. The perplexing and unexplained set of circumstances returns Walter to the lab to closely examine the human remains, where he uncovers an unlikely energy source that triggered the explosion. With the explosive threat of more bombs and links to a classified military project, the intense investigation leads Olivia and Peter to Iraq.

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THIS ENTRY’S STORY

Plot summary and ending

Spoilers ahead. Coverage follows the scope labeled below.

Complete story — includes the ending

A secret military experiment is turning people into human bombs. After one such bomb detonated in a train station, Peter and Olivia travel to Iraq to meet one of Peter's contacts who was involved in the project. They find a list of names from the experiment, the victim in the train station being one of them. They return to find the surviving members, and are able to prevent the next subject from exploding. They find the man responsible ( Stephen McHattie ) and bring him into custody; the man suggests the bombs were intended to eliminate agents working for the Observer. Also, Weiss cures Olivia's inability to walk without a cane.

Sources and content license

Source and revision history · Adapted from Wikipedia contributors, Fringe season 2. HTML formatting and reference markers removed. · Content license