On a storm-tossed sea, Red Pirate Ron (also Blue Pirate Bob and Purple Parrot) Kevin Michael Richardson commands a ruthless crew, with his sharp-witted parrot Stan Charles Nelson Reilly perched nearby and translating orders in a rhythm only the ship’s parrots seem to understand. On the same vessel, Tom and Jerry William Hanna drift through the chaos—Tom is quickly snapped back into line for slacking, his body slammed against the deck, while Jerry moves with a carefree independence that unsettles the pirates and irritates the captain alike. A heated clash erupts when Tom, stirred by frustration, blames Jerry for the trouble, and the chase ends with Jerry blasting Tom out of a cannon and sending him skittering across the waves toward a new set of misadventures.
Ron’s quest is never far from the horizon: he is searching for the fabled Lost Treasure of the Spanish Mane, a legend that promises wealth and glory to the boldest buccaneers. By sheer luck, a breaking wave sweeps the map to the treasure onto the deck of Ron’s ship, but Tom’s quick action saves the parchment—or so it seems—until a spine-chilling warning from the ghost of the Spanish Mane’s captain, Don Diego de Clippershears, rains down a chilling reminder: if the map isn’t sealed back into its bottle by sunset, a terrible curse will awaken. Unfortunately, the bottle itself vanishes into the sea with the receding tide, leaving Tom with no bottle and no easy way to avert the looming curse.
The voyage intensifies when the crew encounters a colossal squid, a fearsome test that Tom counters with a well-timed cannon blast, knocking the beast back. In a tremor of misfortune and quick thinking, Tom shoots Jerry away from Ron’s ship and onto Blue Pirate Bob’s vessel, where Jerry quickly informs Bob’s crew about the map to steer clear of danger and to alert them to Ron’s presence. Bob’s men manage to steal the map, but Ron reclaims it and destroys Bob’s ship in a blazing display of fury. The moment seems bleak until Jerry, stepping into the fray with a wily plan, grabs the treasure bottle from Bob’s ship and reveals the real reason Tom had lost the map in the first place.
As the sun sinks, a ghostly presence sweeps the horizon—the curse is set in motion, and a skeleton crew rises to reclaim the sea. Ron’s crew abandons ship, and their lifeboat lands on top of the same giant squid Tom and Jerry had bested, a grim irony that sets the stage for the next twist. With the ghost’s warning looming above, Ron forces Tom to row, a punishment that binds their fates as they near Yo Ho Island. Tom deserts the voyage, and Jerry follows, their uneasy alliance solidifying in the shared goal of surviving the journey.
When Tom and Jerry reach Yo Ho Island, they brawl briefly over the map, but danger soon erases their quarrel. Tom slips into quicksand, and Jerry—ever the reluctant ally—pulls him to safety. The pair decide to team up to seek the treasure rather than tear each other apart, and so they press forward with renewed resolve. Along the way they meet Purple Pirate Paul, now insisting on being called Barnacle Paul, a former rival who leads a crew of clever monkeys and speaks in real words, unlike his parrot Chuck who cannot. Paul’s backstory unfolds: as children, the three pirates used to make treasure maps aboard their mother’s green pirate ship. A heated argument over a map caused their mother to bottle all their maps and throw them overboard, an act that left Paul with the keenest memory of the routes. He reveals that, after decades apart, Ron and Bob have tracked him down, and Paul’s return to the fold marks a tense reunion that ultimately helps Tom and Jerry slip away—at least for the moment.
Reunited with Ron and Bob only briefly, Paul—now Barnacle Paul—offers his aid to escape, and the trio’s presence buys Tom and Jerry the time they need to slip past the pirates’ pursuit. The duo eventually reach Don Diego’s tomb, where the treasure lies hidden behind a guardian: a giant stone chicken. Don Diego’s spirit tasks them with defeating the guardian to enter, and the two manage to best the stone behemoth, retrieving a stone egg that unlocks the tomb’s secret entrance. Inside, a series of perilous tests—crushing pillars and a memory challenge—drags them deeper into the cave until they finally reach the coveted treasure. Don Diego urges Jerry to take it, but Jerry suspects there is a trick and presses onward to confront the treasure’s true guardian: the familiar giant squid. The creature recognizes Tom, and a shuddering shriek echoes as a stalactite collapses the guardian, allowing the duo to pocket a portion of the treasure and slip back into the world above.
Their exit triggers a fresh scramble among Ron, Paul, and Bob, who revert to their old rivalry in a frantic scramble for the spoils. Seizing the moment, Jerry slides the treasure onto Bob’s newly repaired ship and quietly hoists the anchor as the vessel begins to drift away, a daring coup that leaves the pirates staring in horror as the ship sails toward a distant horizon. Tom and Spike leap onto the deck by catapult, and together they seize control of the ship, with Jerry steering the course and Spike serving as pilot.
In the aftermath, Jerry becomes captain while Spike steps into the role of pilot, and Tom is relegated to scrubbing duties as a playful penalty for the earlier incident—his mouth on Spike’s golden bone having earned him a comic consequence. Stan, Betty, and Chuck join Jerry’s growing crew, and the once-feared pirates flee in fear from the now-reassembled stone chicken, a visual reminder that legends, curses, and rivalries can be outpaced by teamwork, wit, and a little maritime luck.
