Life on Earth
Scorpio was first seen in the beginning of the film with Cetus, Leo, Lacerta and the Roc as Eris was demonstrating how she will make chaos to the Earth, planning it by stealing the legendary Book of Peace as she spotted it being transported to Syracuse on a noble ship captained by the city's Crown Prince Proteus, with a pirate ship captained his childhood friend Sinbad on his tail.
Later on, Scorpio and Lacerta were seen with Eris, who spied Sinbad and his crew through a martini glass and sent some sirens after them.
When Sinbad and his crew made it to Tartarus, he and Marina both got inside. While falling, all of the remaining monsters, including Scorpio, watched them from above as they landed to the bottom. There, he dropped down with Marina, Leo and Lacerta to surround the two and attack, but only for Eris to send them away.