Laurie Garvey (Amy Brenneman), a former therapist, must become one again as she heads to Australia to help Nora and Kevin along their paths.
Animals: Grace’s dog Caleb, and his arthritis pills, again appear. A dog bites Laurie when she is spying on the physicists.
The Bible: Nora says the French sailor got the idea of the “seven-headed sea monster” from Revelations, referencing Revelation Chapter 13. Kevin Sr. references the Last Supper, as recounted in all four of the New Testament Gospels. He also mentions the story of “Doubting Thomas,” from John 20:24-29, in which Jesus’s apostle Thomas refuses to believe in others’ accounts of Jesus’s resurrection. Laurie likens herself to another apostle, Judas, referencing his betrayal of Jesus to the authorities, again recounted in all four Gospels. Michael references the thirty pieces of silver Judas was paid according to Matthew 26:15, as well as Judas’s suicide by hanging per Matthew 27:1-10.
Nora mockingly references the Japanese Godzilla monster movie franchise, which is the longest-running film series in history, beginning with the 1954 Ishirō Honda film ゴジラ, or Gojira. The creature was rechristened with the anglicized pronunciation “Godzilla” for the American dub. Godzilla was in fact born from a volcano, similar to the French sailor’s delusion, in Koji Hashimoto’s 1984 sequel/reboot The Return of Godzilla.
Jill says she was obsessed with a videotape of Today’s Special, a Canadian children’s show which ran on the public education station TVOntario from 1981 to 1987, and also aired in the US on Nickelodeon. Here is the theme song Laurie had to listen to repeatedly.
Nora says she should pass the next day with her family (implying she wants to depart), while next to her there is her brother.
In a very meta statement, Sr. underlines that everyone of the characters need to impersonate someone.
Laurie tried to kill herself with sleeping pills. She now betrays them with sleeping pills too.
Laurie and Kevin have a more sweet goodbye then Nora and Kevin's one.
While talking to Kevin, Laurie implying some statements that can be understood only after the last scene:
She says Kevin: "Are you scared?", he answers "No" and she says "Then I'm not either". She's implying she's not scared to die.
Kevin asks: "Will you stay?" and she answers "I can't." She's implying she can't stay on this earth.
Kevin stops Laurie because she forgets her lighter, but she says: "Ah, you can keep it, I quit". She not only quit smoking, she's quitting life.
The episode opens with Laurie trying to kill herself but giving up, and it closes with Laurie trying to kill herself, and it remains unclear.
This episode features the final series appearances of Jill and Tom. Lindelof has expressed some regret regarding Jill and Tom's limited roles in the third season, saying it "doesn't sit entirely well" with him that the final season "pushed them so significantly to the side" given their prominence earlier in the show.
The opening flashback scene is based on backstory Amy Brenneman and Damon Lindelof conceived for Laurie while walking through Central Park after the first table read for the Pilot.
Laurie takes ipecac syrup to induce vomiting, although this remedy has found disfavor within the medical community in recent years for being ineffective at purging the body of poisons.
Grace Playford’s address is 5 Pigeon Run Road.
The trucks containing Dr. Eden and Dr. Bekker’s equipment say “National Weather Research Foundation,” presumably as a cover.
"Wherever I May Roam" by Apocalyptica (Laurie's aborted suicide attempt in the opening)
"1-800-Suicide" by Gravediggaz (main title)
La traviata, Act III: prelude, composed by Giuseppe Verdi, performed by Ondrej Lenárd & Slovak Radio Symphony Orchestra (Kevin Sr. tells Laurie about his arrival at Grace's ranch) (this recording was previously used in "Crazy Whitefella Thinking" when Kevin Sr. tells Christopher Sunday his story about Tony the chicken)
"Kneel at the Cross" by Jean Stafford (Kevin Sr. knocks out Officer Gerard)
"Tom's Lullaby" by Max Richter (John tells Laurie about the boat in front of Grace's house, and says he can still shred it if they go home now)
"No, Not One!" composed by Johnson Oatman Jr. & George C. Hugg, sung by Lindsay Duncan (Grace sings while preparing dinner)
"Dona Nobis Pacem 1" by Max Richter (Nora's beach ball story)
"A Blessing" by Max Richter (Kevin and Laurie say goodbye)