Shaun is ready for the next step in his relationship with Carly. However, he continues to struggle as they grow closer and more intimate, and is dealt some troubling news about a deeply personal issue. Meanwhile, a young patient must decide on a treatment that could save her life or possibly destroy her marriage.
On Halloween, Magnum and Jin (guest star Bobby Lee) search for a skip-tracer at a Halloween bash, just as Katsumoto tracks an escaped killer who is headed to that same party. Also, Higgins and Rick must spend the night at an allegedly haunted house in order to debunk the notion, and TC and Kumu protect a sacred Hawaiian burial ground.
Having had their memories erased by ambitious master architect Michael (Ted Danson), Eleanor (Kristen Bell), Chidi (William Jackson Harper), Tahani (Jameela Jamil) and Jason (Manny Jacinto) again settle into the Good Place, unaware of what has previously transpired...except that Eleanor discovers the one clue she had left for herself and attempts to piece things together.
Higgins job to repo a plane goes south when she and Magnum discover that it was being used by a drug cartel who opens fire at the plane, forcing them to crash land in the jungle, where they find a stowaway on board with a target on his back. Also, Higgins has her first date with Dr. Ethan Shah.