Loose Cannon used 16mm telerecordings, telesnaps and audio recordings, supplemented with new visual elements, including CGI animation. It created original interviews with Doctor Who cast and crew to supplement the videotapes and for Marco Polo, a new introductory sequence with Mark Eden reprising his role as the title character. It some cases, in the absence of actual footage or other photos, as with their reconstruction of Mission to the Unknown, their duties involved virtually recreating the story from scratch.
Loose Cannon was founded by Rick Brindell in December 1997. He first created a reconstruction of The Macra Terror. Other members include Dean Rose and Russ Port. Loose Cannon member Derek Handley now assists the BBC DVD releases. Stuart Palmer helped run the website.