Walter Bishop's examination of the human remains reveals no trace of any explosive devices. Instead, the officer's body itself acted as the bomb.
The narrative kicks off when an on-duty police officer receives a phone call from an unknown individual known only as the "Colonel". The officer is instructed to retrieve a briefcase at a train station. As he reaches his destination, a mysterious pulse causes static on nearby electronics. Suddenly, the officer's body rapidly hardens into a dense, crystalline state and violently explodes. The shrapnel from his own frozen body parts kills 11 people. 🔬 The Investigation [S2E3] Fracture
Autopsy results show daily needle marks between the victim's toes. Walter deduces the officer was injecting a secret drug for over a year. Walter Bishop's examination of the human remains reveals
Initially, investigators assume a conventional bomb caused the disaster. However, the Fringe team quickly arrives at the scene to uncover a much more bizarre reality: The officer is instructed to retrieve a briefcase
Running parallel to the investigation is Olivia's personal battle to heal from her traumatic inter-dimensional car crash. She continues visiting Sam Weiss at a bowling alley. Though she initially finds his requests—such as tying her shoes and keeping score during games—tedious and irrelevant, Sam's unconventional therapy successfully restores her ability to walk without a cane by the end of the episode.