This is the only episode that Princess Allura and Coran do not appear in.
The only time the group of main characters from the Galaxy Alliance was referred to as the Air Unit (this may be in connection with the other Voltron Force having an Air Team along with Sea and Land Teams. Keith also refers to himself as the Air Unit Leader instead of the Commander).
The images of the destroyed planet in the GoLion pilot "Escape from Slave Castle" this was based upon were not Arus but from a flashback-sequence of a post-nuclear-war Earth in 1999. Also, the one who split Voltron into five pieces was not the witch in disguise but an actual deity responding to a lofty challenge from him. Deleted footage included prisoners' being tortured to death.
First Appearances: Keith, Lance, Sven, Pidge, Hunk, Yurak, King Zarkon, Haggar, and Blue Cat.