Santa Company, a global entity dedicated to spreading joy through gift-giving, relies on its team of magical elves, known as 'tonttus,' to assist various Santas in their yearly missions. Mint Rondo, a young tonttu eager to follow in her brother's footsteps, joins the bustling tropical headquarters of Santa Company. Alongside her friend Thomas Dou and rival Noah, Mint embarks on rigorous training to fulfill her dream of becoming a Santa. Despite her persistent clumsiness leading her to lag behind, Mint finds herself overshadowed by her sibling. While contemplating on the beach one day, Mint, Thomas, and Noah stumble upon a grave threat looming over Santa Company and its pristine environment: ocean pollution. Unnoticed litter poses a significant danger, imperiling marine life and the Santa Company community. As the impending crisis threatens their home, Mint must rise to the occasion, rectify her mistakes, and lead the charge to safeguard their island paradise before the arrival of Christmas Eve.