- "You know, I felt alone for a long time. So long, that I just figured that's how things were going to be. It turns out there were people out there for me that I didn't even know I wanted. You'll find your people too, I promise. You just have to keep believing that things will be okay, even when it's hard."
- —Zari Tomaz to young Ray Palmer
|The Legends learn that Ray Palmer will die because they broke time, causing them to race back to 1988 to try and save his life. When they arrive, they are surprised to learn that young Ray Palmer has befriended a time-displaced baby Dominator, putting him in harm's way with the government and the Dominator's mother. New to the ship and missions, Zari must find her place and learn to trust the team. Meanwhile, Stein begins working on a secret project on the ship which makes Rory and Jax suspicious.|
Preparation ran from July 31 until August 9, 2017. Shooting ran from August 10 until August 22, 2017.
- Young Ray is seen giving Gumball a Nougat Nummy, a reference to another series produced by Marc Guggenheim, Trollhunters.
- There are a few refences to the 1982 film E.T. the Extra-Terrestrial in this episode.
- The title is a reference to a famous line in the aforementioned movie, in which the titular character requests to "phone home". The episode is highly similar to the film, in which the protagonist protects an alien, E.T., from government agents, before allowing its family to take it home.
- Gumball hiding in the closet among the stuffed animals reenacts a nearly identical scene with E.T.
- When Zari, Ray, and Ray's younger self are trying to take the Gumball to safety, Zari uses her totem to create a wind that lifts the bikes she and young Ray are riding into the air, reminiscent of when E.T. uses telekinesis to make the kids' bicycles fly.
- Amaya says, "Get away from him, you bitch!" to the Dominator queen attacking Nate, which is a play on the infamous line, "Get away from her, you bitch!" spoken by Ellen Ripley in the 1986 film Aliens.
- When keeping watch on young Ray, Nate cleans a DeLorean DMC-12, saying, "This is a time machine". This is a reference to the Back to the Future franchise, in which the time machine is a DeLorean DMC-12.
- Ray picks up a Nintendo Entertainment System controller, reminiscing how his brother always wanted to play Tecmo Bowl, whereas he always wanted to play The Legend of Zelda.
- Zari later lies that she bought a copy of The Legend of Zelda on the black market, never having beaten the final boss (whom Ray notes as Ganon).
- After Nate realizes he made out with the Dominator queen, posing as Ray's mother, he says, "I kissed a Dominator and I liked it." This a reference to the Katy Perry song "I Kissed a Girl."
- Ray and Nate makes mention of a number of Billy Joel's albums, including Piano Man, River of Dreams, The Stranger and The Nylon Curtain.
- Young Ray and Gumball watch the 1952 film Singin' in the Rain together, specifically the scene in which they sing "Good Morning". Gumball later makes the NSA agents perform the routine from the scene.
- Older Ray and Zari later watch Singin' in the Rain on the Waverider, coincidentally after Zari promises younger Ray that she would watch it with him.
- Mick claimed that Singin' in the Rain was not as good as the 1971 film Fiddler on the Roof.
- Two kids are dressed for Halloween as Obi-Wan Kenobi from Star Wars and the musician Prince, respectively.
- Zari reveals the FDA outlawed all candy by 2042. In "", Mick wondered why all the snacks from 2166 are sugar-free.
- Young Ray identifies himself as Sir Galahad to Zari. He goes on to meet the actual Galahad in Camelot and used his sword to fight for the kingdom.
- Zari's costume in the final scene, like her amulet, is based on the 1970s Saturday morning show The Secrets of Isis.
- Ray's elementary school is said to be Ivy Town Elementary. However, the school has the sign "Ivy Ridge Middle School".
- An Ivy Town Times article lists Ray as being eight years old on October 31, 1988, which would place Ray's date of birth between November 1979 and October 1980. However, Ray's birth year was previously given as 1981, making this a continuity error.
- Young Ray delivers the line, "You shall not pass," from the movie version of The Lord of the Rings: Fellowship of the Ring, which released in 2001. The book's version of the line is "You cannot pass!"
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