After the release of , the Ninja are left without a clear lead on the Overlord’s whereabouts until they intercept a coded message regarding "Codename: Arcturus".
: The team works to decipher the meaning of the project, eventually leading them to the ancient city of Ouroboros . [S3E6] Codename: Arcturus
The term "Arcturus" is also prominent in the episode "Trinity" (Season 2, Episode 6). In that series: After the release of , the Ninja are
: They discover that the Overlord's plan involves traveling into space to retrieve the Golden Weapons , which were previously believed to be lost. In that series: : They discover that the
(also known as Project Arcturus ) is the sixth episode of the third season of Ninjago: Masters of Spinjitzu . In this episode, the Ninja investigate a cryptic clue left by their enemies, the Overlord and Pythor, while discovering that their journey is about to take them to an unexpected location. Episode Summary