The Adventures of William Tell is a British swashbuckler adventure series, first broadcast on the ITV network in 1958, and produced by ITC Entertainment.

U.S. Embassy employee Lee Cochrane and his wife, Sue, receive a shock when they discover that their 18-month-old son, Simon, has disappeared in London. He was last seen with their nanny, and the couple seemingly have no leads that might help police Detective Craig in his investigation. The media sensationalizes the incident, causing an unnecessary distraction as the couple prepares to confront the culprit face-to-face.

The second collection of short stories written by Baroness Orczy about the gallant English hero, the Scarlet Pimpernel and his League.