A TV series about the Long John Silver character from Treasure Island. It was made in 1954 in colour in Australia for the American and British markets before the development of Australian television. Long John Silver is the proud captain of his own ship and his own crew. He and his buccaneer cruise around the Caribbean and often stay on the side of the English and fight the French and Spanish. After the long and dangerous adventures, he and his crew rest in the tavern of Miss Purity. This series aired in the United States first on Syndicated basis in 1956, but not on a regular basis and completely random as part of another show. Several episodes were edited together and shown as movies in the cinemas under the titles: Under The Black Flag and South Sea Pirates. After that it was sold to the ITV Network in the UK, and aired in 1957. In 1958 Australian ABC screened the series as part of Children's TV Club show.

In this sequel to Treasure Island, Long John hopes to rescue his friend Jim from a rival pirate and return for more treasure.