Deanna tries to assure Ensign Sutter that the imaginary friend created by his daughter, Clara, is a normal reaction to a childhood of constant change. But as the Enterprise explores the FGC-47 nebula, Clara's imaginary friend Isabella suddenly materializes and gets Clara into trouble by leading her into areas that are off-limits, like Engineering and Ten Forward. Meanwhile, the Enterprise is being surrounded by energy strands which are draining the ship's energy.

Whoopi Goldberg (Guinan)
Noley Thornton (Clara Sutter)
Shay Astar (Isabella)
Jeff Allin (Ensign Daniel Sutter)
Brian Bonsall (Alexander Rozhenko)
Patti Yasutake (Nurse Alyssa Ogawa)
Sheila Franklin (Ensign Felton)

• Ensign Sutter has moved from starship to starship since Clara was 2-years-old. La Forge tells Ensign Sutter that his parents are both in Starfleet and that he also moved around a lot whe he was a child. His mother is a command officer, his father an exozoologist.
  
• Though Keiko O'Brien does not appear in this episode, Clara helps her plant seeds in the Arboretum.
  
• Guinan tells Clara she had an imaginary friend when she was young, a Tarkassian razor beast.