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 battle with the Strake. And in his weakened state couldn't recover the three keys to his treasure bestowed upon him by King Neptune that will restore his strength hidden on Never Land.
Role in the series
The keys first appeared in the episode special "The Legion of Pirate Villains!" where Captain Colossus's pet Never Land Firebird, 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. While accompanying Wildfire, Jake and his crew are later confronted by the Grim Buccaneer and his Legion of Pirate Villains who also desire the treasure. 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's strength, and he handily defeats the other villains.