Sometimes after his battle with the Strake, Captain Colossus finally returns to his island but he is slowly losing his strength as his body hasn't recovered from his first the battle and in his weakened state he couldn't traverse the Never Sea to Never Land recover the three keys to his treasure. Captain Colossus's pet Never Land Firebird, Wildfire travels for help to recover the keys to open the treasure chest.
Role in the series
Captain Colossus's Treasure first appeared in the episode special "The Legion of Pirate Villains" Wildfire meets Jake and his crew sailing the Mighty Colossus, Wildfire reveals a secret compartment aboard the ship revealing a map showing three magical keys hidden on Never Land that will unlock Colossus's magical treasure. Unknown to Jake and his crew at the time Wildfire was being followed by the Grim Buccaneer in order to claim the treasure for himself. Grim summons ShiverJack, Doctor Undergear, and Captain Hook (by accident) to form the Legion of Pirate Villains to help locate Colossus's legendary treasure hidden on Colossus Island. Their main objective is to find three keys, The Crystal Key, The Golden Key, and The Iron Key. After locating the secret entrance into Colossus fortress on Colossus Island thanks to Wildfire. Jake and his crew meet Captain Colossus who uncertain at first of the young trespasser but Wildfire assured that they have come to help. Later during the special Jake, his comrades accompanied by Captain Colossus are forced to confront the Legion of Pirate Villains but are able to recover the treasure when Captain Hook sides with them against the Grim Buccaneer. The treasure then restores Colossus' strength, and he handily defeats the other villains.