Murder, treasure, and possible mutiny are all featured in the third season of the swashbuckler television drama created by Jon Steinberg and Robert Levine, in a story set as a prequel to Robert Louis Stevenson's Treasure Island. The danger continues to rise for Captain Flint as Captain Flint (Toby Stephens) and the Walrus crew, as he falls into unexpected peril while in dangerous territory, and motivations of key crew members are questioned. Meanwhile, enemies at home plot to take the powerful pirate ship down for good. All ten episodes from Season Three are available in this collection.

This set brings together three new mysteries from the second season of Sherlock, the series that featured Benedict Cumberbatch as the enduringly popular private eye and Martin Freeman as his loyal sidekick Dr. Watson.