After encountering the wreck of the starship U.S.S. Jenolan that crashed on the surface of a Dyson's sphere 75 years ago, the Enterprise crew discovers a survivor suspended in the transporter system: Montgomery "Scotty" Scott.

James Doohan (Capt. Montgomery Scott)
Lanei Chapman (Ensign Sariel Rager)
Erick Weiss (Ensign Kane)
Stacie Foster (Lieutenant Bartel)
Ernie Minch (Waiter)
Majel Barrett (Computer Voice)

• Scotty visits the bridge of the original U.S.S. Enterprise NCC-1701 on the holodeck. It was recreated with footage from the original series and a rebuild of the bridge's turbolift and engineering station.
  
• A scene where Deanna has a talk with Scotty after he and Geordi argue was filmed, but was unfortunately cut to save time. She comes to talk to Scotty and he's friendly at first — until he finds out she's a counselor. He gets upset over Geordi and goes to Ten Forward where Data gives him the green drink. In the aired version, Deanna didn't appear until the very end where he gives her a kiss on the cheek and speaks her only word ("Goodbye"). This seems odd until you know that they had talked earlier.
  
• The U.S.S. Jenolan NCC-2010 is a Sydney-class runabout-style transport ship.
  
• Scotty and Geordi are beamed from the Jenolan to the Enterprise at the last second, even though the Jenolan's shields are still up. This is not supposed to be possible according to every other Trek episode ever.