Reciprocity (Fringe)
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| "Reciprocity" | |
|---|---|
| Fringe episode | |
 The assembled machine under study by Massive Dynamic and Fringe Division scientists | |
| Episode no. | Season 3 Episode 11 |
| Directed by | Jeannot Szwarc |
| Written by | Josh Singer |
| Production code | 3X6111 |
| Original air date | January 28, 2011 |
| Guest appearances | |
| |
"Reciprocity" is the eleventh episode of the third season of the American science fiction drama television series Fringe, and the 54th episode overall. In the episode, the Fringe division follows a chain of shapeshifter murders as the assembly of the doomsday device nears completion. Ryan McDonald and Charles Parnell guest starred.
Co-executive producer Josh Singer wrote "Reciprocity", his seventh such credit for the series. For his third Fringe directional credit, Jeannot Szwarc served as the director. The episode first aired in the United States on January 28, 2011 to an estimated 4.57 million viewers, making it the highest rated program of the night. Television critics generally viewed the episode positively, with a number praising the revelation of the shapeshifter killer's identity.
The Fringe division visits a secured Massive Dynamic facility where the prime universe's version of the doomsday device, believed to be an artifact of the "First People", has been assembled. The company is trying to use the books about the First People, including those that William Bell had sought, that they have collected to understand the workings of the device. They are aware that before her departure, Fauxlivia (Anna Torv)—Olivia's parallel universe doppelgänger—stole one component of the unit, possibly its power source as they cannot find any other way to engage the device. However, as Peter (Joshua Jackson) nears it, the device reacts, moving into a new configuration and sending out electromagnetic pulses, while Peter suddenly has a nosebleed. Peter returns with Olivia (Torv) and Walter (John Noble) to Massive Dynamic to undergo some tests to see if he was the cause for the device's activation. Meanwhile, Broyles (Lance Reddick) asks Astrid (Jasika Nicole) to discreetly review the files pulled from Fauxlivia's computer for any hidden messages, not wishing to have Olivia or Peter be forced to learn of what Fauxlivia wrote about them.
The next day, the corpse of a shapeshifter is found, shot in the head with its data disc—encoded information regarding its mission—missing. When the identity connects it to one of the employees at the facility where the Fringe mainframe is housed, Broyles suspects a mole seeking to wipe out Fauxlivia's data, and orders a mainframe lockdown, while verifying the humanity of key people in the FBI and Massive Dynamic. Astrid identifies several other potential candidates, including a doctor from Massive Dynamic who had already left. By the time Fringe division reaches his home, they find the man, a shapeshifter, already dead.
Olivia returns to the lab and convinces Astrid to let her review Fauxlivia's notes, believing that should she think like her doppelgänger, she will see something they missed. Eventually, she comes to identify a cipher based on her childhood name, Olive, that identifies Newton and the other slain shapeshifters, and one that has yet to be killed. Fringe begins to descend on his residence.
Meanwhile, Walter, having thought Peter had returned to Massive Dynamic for tests, learns he is not there. Walter enters his room, finding printed pages of Fauxlivia's notes including the circled names of the shapeshifters, those that Olivia just identified. Walter arrives at the home of the final shapeshifter just as Peter finishes killing him. Peter tries to justify his actions as no longer wanting to be just reactive to the situation and to learn of the shapeshifters' goal. Peter and Walter depart before the Fringe team arrives; Walter postulates that the device, when it activated, may have "weaponized" Peter to take these steps and fears what else Peter may attempt to do.
Production
Co-executive producer Josh Singer was responsible for writing "Reciprocity",[1] his seventh such credit for the series.[2] The episode was directed by Jeannot Szwarc, his third directional credit for the series.[3] The episode featured one-time guest roles by actors Charles Parnell as Dr. James Falcon and Sean Campbell as Zach Alpert. Ryan McDonald reprised his role as Massive Dynamic scientist Brandon Fayette.[4]
Alluding to the premise of "Reciprocity", story editor Glen Whitman noted that "often in science fiction simply because you need a source of conflict, it ends up being that science or technology is the source of evil. And that happens a lot in Fringe. I think that’s unavoidable. But the flip side of that coin is that on Fringe, science just as often ends up being able to save the day."[5] The machine around which the episode is based was rendered using CGI.[5]
Since the parallel universe was revealed in the season two finale, viewers have debated nicknames for the various doppelgangers featured. Olivia Dunham's double from the parallel universe was one such matter of contention; such nicknames included Bolivia, Fauxlivia, and Altlivia. "Reciprocity" was believed by some critics to have resolved this, as one character refers to her as Fauxlivia.[1][6][7]
As with other Fringe episodes,[8][9] Fox released a science lesson plan in collaboration with Science Olympiad for grade school children, focusing on the science seen in "Reciprocity", with the intention of having "students learn about the classification of blood into blood types based upon the molecules on the surface of red blood cells."[10]
