Die Schüler der Galaxy High machen eine Tagesexkursion zum Planeten Solara Moonray. Dort finden Brett, Josh und Yoko eine geheime Schatzkarte. In der folgenden Nacht kapern sie heimlich eine Hornisse und fliegen erneut dorthin, um den Schatz zu suchen. Dort begegnet ihnen der alte Käptn Blackbeard, ein ehemaliger Kontrahent. An der auf der Karte verzeichneten Stelle finden sie eine geheimnisvolle kleine Kiste, aus der eine Art Flaschengeist entfleucht. Es handelt sich um Thork, einen bösen Herrscher, der einst von einigen mutigen Gegnern in die Kiste verbannt wurde …
While on a Ms. Schragger-lead field trip to the far away planet of Solara Moonray (a planet that’s lived in peace for a billion Earth years), Josh, Yoko and Brett discover what appears to be some kind of mysterious artifact. Though Brett wants to turn it over to Ms. S immediately, Josh convinces him to keep it under wraps – at least until they can learn a bit more about it. "After all, it could be valuable." What the gang doesn’t realize, however, is that they’re being clandestinely watched by Blackbeards (from episode #011) who was looking for the artifact! Back at school, the team does some secret research and determines that the artifact is actually a treasure map – the notorious Treasure of the Solara Moonray to be exact, rumored to bring whoever finds it a "fitting reward." The gang vows to keep the map a secret and set out together in the morning to find the treasure. Greed gets the better of them and, after three silly dream sequences in which each team member dreams of their reward, they forget their promise to each other and each tries to steal the map! What ensues is a mad dash to get to the treasure first, with the map changing hands several times on Solara Moonray. Ultimately, when the gang finds the treasure, they are surprised to learn that they’ve also lead Blackbeards to it. After restraining the team, Blackbeards opens the "treasure," only to find that he’s released an evil alien that was imprisoned inside by the Solara Moonrayians. The map was a trick created by the alien to fool someone into releasing him. Realizing that their greed is partially to blame for the situation, and that the "fitting reward" is more fitting than they imagined, Josh, Yoko and Brett have to work together to save Blackbeards and stop the alien before he destroys Galaxy High! In a b-story, the gang lets greed get the better of them.
