| "The Day We Died" | |
|---|---|
| Fringe episode | |
 In a critical scene near the end of the episode, Peter's inexplicable disappearance is not noticed by the others. The plot point was a popular point of interest among critics. | |
| Episode no. | Season 3 Episode 22 |
| Directed by | Joe Chappelle |
| Story by | J. H. Wyman Jeff Pinkner Akiva Goldsman |
| Teleplay by | Jeff Pinkner J. H. Wyman |
| Production code | 3X6122 |
| Original air date | May 6, 2011 |
| Guest appearances | |
| |
"The Day We Died" is the third season finale of the Fox science fiction drama television series Fringe. It is the season's 22nd episode and the series' 65th episode overall. The finale follows the aftermath of Peter Bishop entering and activating the doomsday device, events which took place in the previous episode. He finds himself 15 years in the future; though the device has destroyed the parallel universe, his universe is nevertheless gradually disintegrating. Peter comes to realize the background of the doomsday device and wakes up in 2011. After getting the two universes to agree to work together, he inexplicably disappears.
The episode's teleplay was co-written by Jeff Pinkner and J.H. Wyman, and co-wrote the story along with consulting producer Akiva Goldsman. Executive producer Joe Chappelle served as director. The writers wrote the script without knowing if the series was going to be renewed for a fourth season; Fox's renewal announcement came in late March, but no changes were made to the storyline. They designed the episode as a set-up for the following season, equating it to a book chapter that "propels" the reader forward. Unlike previous season finales, "The Day We Died" was one hour long and was linked to the previous two episodes in one continuous story arc. "The Day We Died" featured one-time guest actors Brad Dourif and Emily Meade.
"The Day We Died" aired on May 6, 2011 in the United States to an estimated 3.0 million viewers, though this number almost doubled once time-shifted views were taken into account. While its 1.4 ratings share among adults 18 to 49 was an eight percent decrease from the previous episode, it helped Fox tie for first place that night. Reviews of the episode have been generally positive, with many critics writing that Peter's disappearance was a good direction for the series. Multiple reviewers ranked it as one of the best episodes of the television season, including The Futon Critic and TV.com. The cast were also receptive to the episode, and actor John Noble submitted his performance for consideration at the 63rd Primetime Emmy Awards.