Brightly first appeared in the episode "The Golden Twilight Treasure!", bumping into Jake and his crew while they were gathering seashells on Seashell Beach when they came across an old lantern. Izzy is the one who named him Brightly because when he is happy he shines brightly He also likes being inside the lantern lighting the way for Jake and his crew. Captain Hook once tried to steal him so that he could light his way to a treasure. But Jake and his crew recovered him with the help of Izzy's Pixie Dust.
Brightly return in the special "Jake and the Never Land Pirates: Jake Saves Bucky", when Jake and his crew use the firefly to light their beacon in the Never Land sky so they can summon Peter Pan to help them get Bucky back from Captain Hook.
Brightly reappeared in the episode "The Lighthouse Diamond" to light the way as the sea pups prepare to see the midnight sunflowers with Red Jessica on the far side of Pirate Island. Brightly helped find the Light House Diamond after Captain Hook attempted to swipe it and lost it the Gemstone Pit.
Brightly reappeared in the episode "The Never Sands of Time". Cubby reminds his mates not to forget Brightly and his firefly friends will perform a light show on Pirate Island. Later, Brightly and his firefly friends assist Jake and his crew distract the Sand Serpent allowing the pirates the chance to restore the Never Sands of Time back to its stand.
- "The Golden Twilight Treasure! (first appearance)
- "Jake and the Never Land Pirates: Jake Saves Bucky"
- "The Lighthouse Diamond"
- "The Never Sands of Time"