Squadron Four was one of six squadrons that formed the 204th Imperial Fighter Wing, a fighter wing of the Galactic Empire, led by Captain Jothal Gablerone. They undertook a mission to Vnex, reporting back to Colonel Shakara Nuress on Orbital One. The squadron later pursued the New Republic pilots Yrica Quell and Chass na Chadic during the attack on Pandem Nai but failed to eliminate the pair.
In the 2019 novel Alphabet Squadron, the first instalment of Alexander Freed's Star Wars: Alphabet Squadron trilogy, Squadron Four was mentioned, while a squadron led by Jothal Gablerone also appeared. Squadron Four was later confirmed to be Gablerone's squadron in the 2020 novel Shadow Fall, the second novel in Freed's trilogy.
In the 2019 novel Alphabet Squadron, the first instalment of Alexander Freed's Star Wars: Alphabet Squadron trilogy, Squadron Four was mentioned, while a squadron led by Jothal Gablerone also appeared. Squadron Four was later confirmed to be Gablerone's squadron in the 2020 novel Shadow Fall, the second novel in Freed's trilogy.