Tico of the Seven Seas is a Japanese anime series by Nippon Animation. It is about a girl of eleven with her best friend Tico, a female orca.

Dr. Gulliver has returned from his journey to his family after a long absence - and tells them the story of his travels.

Lord and Lady Glenarvan found a bottle in the ocean. This bottle contained a letter from Captain Grant that he and two of his sailors had survived a disaster at sea and need help. Unfortunately, the letter was damaged by water, and the latitude is known (37 degrees), but not the longitude. The Glenarvans decide to find Captain Grant.