With a potential new base found, the Rebels need fuel, and the Ghost crew is once more on the case. Heading to a well-guarded Imperial refueling outpost, Hera puts Chopper in charge of staying with the Ghost and monitoring Imperial transmission, but he instead gets distracted by a new leg strut at a nearby shop.
Chopper being Chopper, he ignores his orders and instead steals the leg. After being accidentally abandoned by the Ghost crew, he is chased by stormtroopers into an Imperial cargo ship, where he meets an inventory droid, AP-5.
In The Forgotten Droid, we learn a bit more about Chopper’s backstory and his character beyond the fact he is a somewhat malicious, unpredictable droid. He’s a veteran of the Clone Wars, where he was a military droid, saved from a crash by Hera on Ryloth. AP-5, too, is a Clone Wars veteran, having been a tactical droid during the same Ryloth campaign. The two droids bond over their war stories, and Chopper shows he can care about something other than himself, surprising even Hera. This episode helps to build upon previous episodes, such as Homecoming, with little tidbits of character history.