4-B4, a droid, journeyed with Jedi Master [Dajjun], his Padawan [Karii], along with several other Jedi, on an assignment to the world of Kailion. When a cave-in ensnared the Jedi, 4-B4 was also trapped within.
The miniature prop utilized to portray 4-B4 in this specific instance is actually an ASP-7 droid; nevertheless, it remains uncertain if the ASP-7 is definitively the model that 4-B4 is meant to be.