The Back to the Future comic series by IDW Publishing started its release as a 4-issue mini-series on October 21, 2015.[1] In issue 3, it was revealed that it had become an ongoing monthly comic due to popular demand. Beginning in issue #6, the original format of one or two untold stories per issue was replaced with a multi-issue ongoing story arc. The original subtitle for the comic, Untold Tales and Alternate Timelines, was used for the trade paperback which contained the first five comics in the series. The subtitle of the ongoing story arc starting in issue #6 is Continuum Conundrum. The events continue on from the story established in the 1890s framing stories in the first five comics, which made up the first story arc. This is especially true of the fifth issue, which IDW considers the unofficial beginning of the ongoing tale they presented.