- "It's nice to know we have at least one friend in this town"
- ―Michael to Liz
Liz becomes distressed when she realizes her personal diary, with details about the aliens, is missing. Liz realizes she could be jeopardizing the lives of the people she has come to care about if her diary ends up in the wrong hands. Liz tells Maria about her missing diary, and Maria offers to help. Maria ends up hurting their good friend Alex, by making the false accusation that he took the diary. Upset, Alex confides in Topolsky about the missing diary. Topolsky then places a call to a government agent she is secretly working for, telling them she wants to find the diary herself. While Max is perusing through UFO books at the museum, Liz tells him her diary is missing promising she will find it soon. Max places his trust in Liz, but is clearly nervous. To take his mind off the matter at hand, Max begins reading a book on an infamous UFO-ologist, James Atherton. Later, when Max becomes suspicious that Kyle may have taken Liz's diary, he and Liz break into the Valenti home to search for the book. Unsuccessful, the two nearly escape Kyle's return home while unbeknownst to them, a mystery man was also searching for the same item.
Max confesses to Isabel and Michael about Liz misplacing her diary. Michael then goes to visit Liz at The Crashdown, and reveals he was the one that took the diary. Michael explains to Liz he wanted to make sure the contents wouldn't jeopardize their lives. Michael realizes Liz has only written her own personal thoughts, rather than facts about the aliens. Meanwhile, the visions Michael received from holding the key he took from Valenti's office become clearer. Michael becomes obsessed with figuring out what he's seeing, and begins to draw out a dome-like object. He confides in Max and Isabel his feelings it has to do with the fourth alien. Michael realizes what he's been drawing is a geodesic dome, and tells Max and Isabel the key he stole from Valenti's office must open a door to a dome. While leafing through Max's UFO book, Isabel notices Michael's drawing is the same as the geodesic dome house belonging to James Atherton.
- Shiri Appleby as Liz Parker
- Jason Behr as Max Evans
- Majandra Delfino as Maria DeLuca
- Katherine Heigl as Isabel Evans
- Colin Hanks as Alex Whitman
- Brendan Fehr as Michael Guerin
- Nick Wechsler as Kyle Valenti
- William Sadler as Sheriff Valenti
Michael has a prophetic dream about the dome
Max touches a CD in Liz's room and sees Kyle walking around in her room
Michael erases a stretch of paint on his canvas in the art studio
- Max takes a job at the UFO center
- Michael turns out to be a talented painter and exhibits his work at the school
- Alex is angry at Maria and Liz for accusing him of stealing Liz' diary
- Michael took Liz' journal
- Michael and Liz share a nice moment