Finn O’Malley, a mischievous and charming Irishman, is a leprechaun in disguise who embarks on the Poseidon’s Pride, a luxury gay cruise renowned for wild parties, flamboyant contests, and a sprinkle of scandal. Armed with his wit, an enchanted green trunk filled with gold, and his signature emerald-green speedos, Finn seeks an escape from Dublin’s monotony and the weight of his magical secrets.

Onboard, Finn navigates flirty encounters, suspicious rivals, and thrilling adventures. He charms Derek, a magnetic bartender, while clashing with Brady, a cocky treasure hunter determined to uncover Finn's hidden fortune. As Brady's meddling triggers chaos—freezing pools, spilling drinks, and cursed waterslides—Finn cleverly turns the tables with his magical luck.

Between moonlit skinny dips, steamy poolside games, and an escalating treasure hunt, Finn realizes the value of trust and vulnerability amidst the fun and frivolity. With Derek by his side and the cruise’s unpredictable magic unfolding, Finn faces his fears of exposure while embracing the adventure of love and connection.

In the end, Finn learns that real treasure lies in shared laughter, newfound camaraderie, and the risks of opening his heart—even on a ship where secrets are currency and every moment is a chance for mischief.