Aiming for the top! Diving into the mystery of the mermaids! Alex and Lulu travel to the Pacific Ocean to search for the legendary mermaids, only to encounter - a ghost ship?! Not only that, they run into the famous ocean adventurer, "Ancient Mariner"! Is he friend or foe?

Aiming for the top! Seeking the legendary dragon! After rescuing Lulu from her sister's smothering affections, Alex, continues to journey through China. Along the way, they witness the No.1 Adventurer, Akhator, battling with the mythical Qilin. However, Alex is more interested in a recently discovered archaeological site. Is it the nest of the Qilin - or of a creature unknown to humanity?

Aiming for the top! Encountering El Dorado! Now that the Sky Demon has seized one of the mysterious orbs, he has become even stronger! To prevent the remaining two orbs from falling into the villain's hands, Alex teams up with the Ancient Mariner again in the Pacific Ocean. There, they encounter old foes - and unexpected friends!

Aiming for the top! Exploring mysteries in the mountains! A group of Adventures disappears right after reporting that they found gold in the Himalayas! The World Adventure Union sends a rescue mission, which includes the No.4 Adventurer, Azure Princess, who unexpectedly provides a clue to Lulu's mysterious background! However, the rescue mission is attacked by snow apes! Will they meet the same fate as the vanished adventures?

Aiming for the top! Surviving the savage seas! Alex's grandfather was once the No.1 Adventurer known as the "Phamtom Spider". On a mission for the World Adventurer Union, a much younger Alex accompanies his grandfather to the Malay Archipelago to look for a treasure that is rumoured to control the ocean's currents. But this will take them into the territory of the infamous "Shark Riders" pirate crew... A look back at Alex's very first adventure!

Aiming for the top! Uncovering the mystery of the forbidden orb! The Ancient Mariner fights desperately to keep the Sky Demon at bay - but will the marine monarch's mightiest efforts be enough to keep the villain from seizing even more power? Meanwhile, Alex and his allies get a major boost, as the world's most legendary Adventurers prepare to return to duty in full force!

Aiming for the top! Uncovering the mystery of the Minotaur! Searching for the clues to break Lulu's curse, she and Alex travel to the island of Crete, home of the legendary half-man half-bull Minotaur... but will they find the truth behind the legend?

Aiming for the top! The search for a legendary pharaoh's treasure! Determined to be the world's top adventurer, Alex set out to Egypt to find the legendary Golden Chariot of Ramesses II! But when his airship crashed in the desert, he is "saved" by Amon, a kind-hearted bar owner! Afterwards, Amon's daughter Samara joins Alex on his search... but little do they know that they are being followed... !

Historical overview of Australia's cinematic history starting from 1896.

Aiming for the top! Mystery in Mexico! Alex succeeds in becoming a host for the last Star Seed - but this also attracts the attention of the evil Sky Demon, who is seeking the power of all the Star Seeds for himself! To keep Alex safe, the world's strongest Adventurers go all out against the Sky Demon, but pay a heavy price... Angry at being thwarted, the Sky Demon vows to destroy all life on Earth - and the Earth itself!